35040840 has 64 divisors (see below), whose sum is σ = 106868160. Its totient is φ = 9189120.

The previous prime is 35040833. The next prime is 35040847. The reversal of 35040840 is 4804053.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (35040833) and next prime (35040847).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 35040840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35040847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927 + ... + 9713.

It is an arithmetic number, because the mean of its divisors is an integer number (1669815).

Almost surely, 2^35040840 is an apocalyptic number.

35040840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35040840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53434080).

35040840 is an abundant number, since it is smaller than the sum of its proper divisors (71827320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

35040840 is a wasteful number, since it uses less digits than its factorization.

35040840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862 (or 4858 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 35040840 is about 5919.5303867790. The cubic root of 35040840 is about 327.2338104679.

Adding to 35040840 its reverse (4804053), we get a palindrome (39844893).

The spelling of 35040840 in words is "thirty-five million, forty thousand, eight hundred forty".