34512870 has 64 divisors (see below), whose sum is σ = 95385600. Its totient is φ = 7828608.

The previous prime is 34512851. The next prime is 34512893. The reversal of 34512870 is 7821543.

It is a super-2 number, since 2×34512870² = 2382276391273800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30739 + ... + 31841.

It is an arithmetic number, because the mean of its divisors is an integer number (1490400).

Almost surely, 2^34512870 is an apocalyptic number.

34512870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34512870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47692800).

34512870 is an abundant number, since it is smaller than the sum of its proper divisors (60872730).

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

34512870 is a wasteful number, since it uses less digits than its factorization.

34512870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 34512870 is about 5874.7655272360. The cubic root of 34512870 is about 325.5819789220.

The spelling of 34512870 in words is "thirty-four million, five hundred twelve thousand, eight hundred seventy".