35042640 has 40 divisors (see below), whose sum is σ = 108632928. Its totient is φ = 9344640.

The previous prime is 35042633. The next prime is 35042647. The reversal of 35042640 is 4624053.

It is an interprime number because it is at equal distance from previous prime (35042633) and next prime (35042647).

It is a tau number, because it is divible by the number of its divisors (40).

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 35042640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35042647) 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 7 ways as a sum of consecutive naturals, for example, 72766 + ... + 73245.

Almost surely, 2^35042640 is an apocalyptic number.

35042640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

35042640 is an abundant number, since it is smaller than the sum of its proper divisors (73590288).

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

35042640 is a wasteful number, since it uses less digits than its factorization.

35042640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146027 (or 146021 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 35042640 is about 5919.6824239143. The cubic root of 35042640 is about 327.2394135563.

Adding to 35042640 its reverse (4624053), we get a palindrome (39666693).

The spelling of 35042640 in words is "thirty-five million, forty-two thousand, six hundred forty".