251428302 has 12 divisors (see below), whose sum is σ = 544761360. Its totient is φ = 83809428.

The previous prime is 251428297. The next prime is 251428319. The reversal of 251428302 is 203824152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6984102 + ... + 6984137.

It is an arithmetic number, because the mean of its divisors is an integer number (45396780).

Almost surely, 2^251428302 is an apocalyptic number.

251428302 is an abundant number, since it is smaller than the sum of its proper divisors (293333058).

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

251428302 is a wasteful number, since it uses less digits than its factorization.

251428302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13968247 (or 13968244 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 251428302 is about 15856.4908475993. The cubic root of 251428302 is about 631.1579459662.

The spelling of 251428302 in words is "two hundred fifty-one million, four hundred twenty-eight thousand, three hundred two".