35840040 has 32 divisors (see below), whose sum is σ = 107520480. Its totient is φ = 9557312.

The previous prime is 35840011. The next prime is 35840041. The reversal of 35840040 is 4004853.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (35840041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149214 + ... + 149453.

It is an arithmetic number, because the mean of its divisors is an integer number (3360015).

Almost surely, 2^35840040 is an apocalyptic number.

35840040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

35840040 is an abundant number, since it is smaller than the sum of its proper divisors (71680440).

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

35840040 is a wasteful number, since it uses less digits than its factorization.

35840040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298681 (or 298677 counting only the distinct ones).

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

The square root of 35840040 is about 5986.6551596029. The cubic root of 35840040 is about 329.7029466419.

Adding to 35840040 its reverse (4004853), we get a palindrome (39844893).

The spelling of 35840040 in words is "thirty-five million, eight hundred forty thousand, forty".