305534012 has 36 divisors (see below), whose sum is σ = 638805384. Its totient is φ = 127401120.

The previous prime is 305533997. The next prime is 305534023. The reversal of 305534012 is 210435503.

It is a super-2 number, since 2×305534012² = 186702064977632288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13814 + ... + 28317.

It is an arithmetic number, because the mean of its divisors is an integer number (17744594).

Almost surely, 2^305534012 is an apocalyptic number.

It is an amenable number.

305534012 is an abundant number, since it is smaller than the sum of its proper divisors (333271372).

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

305534012 is a wasteful number, since it uses less digits than its factorization.

305534012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42186 (or 42177 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 305534012 is about 17479.5312294123. The cubic root of 305534012 is about 673.5241734870.

Adding to 305534012 its reverse (210435503), we get a palindrome (515969515).

The spelling of 305534012 in words is "three hundred five million, five hundred thirty-four thousand, twelve".