305157030 has 16 divisors (see below), whose sum is σ = 732376944. Its totient is φ = 81375200.

The previous prime is 305157023. The next prime is 305157049. The reversal of 305157030 is 30751503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5085921 + ... + 5085980.

It is an arithmetic number, because the mean of its divisors is an integer number (45773559).

Almost surely, 2^305157030 is an apocalyptic number.

305157030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

305157030 is an abundant number, since it is smaller than the sum of its proper divisors (427219914).

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

305157030 is a wasteful number, since it uses less digits than its factorization.

305157030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171911.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 305157030 is about 17468.7443738810. The cubic root of 305157030 is about 673.2470510513.

The spelling of 305157030 in words is "three hundred five million, one hundred fifty-seven thousand, thirty".