34745520 has 40 divisors (see below), whose sum is σ = 107711856. Its totient is φ = 9265408.

The previous prime is 34745489. The next prime is 34745521. The reversal of 34745520 is 2554743.

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 (30).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (34745521) 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, 72147 + ... + 72626.

Almost surely, 2^34745520 is an apocalyptic number.

34745520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34745520 is an abundant number, since it is smaller than the sum of its proper divisors (72966336).

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

34745520 is a wasteful number, since it uses less digits than its factorization.

34745520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144789 (or 144783 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 34745520 is about 5894.5330603874. The cubic root of 34745520 is about 326.3119199570.

The spelling of 34745520 in words is "thirty-four million, seven hundred forty-five thousand, five hundred twenty".