250942840 has 32 divisors (see below), whose sum is σ = 577756080. Its totient is φ = 98042112.

The previous prime is 250942819. The next prime is 250942847. The reversal of 250942840 is 48249052.

It is a junction number, because it is equal to n+sod(n) for n = 250942796 and 250942805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250942847) 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, 71229 + ... + 74668.

Almost surely, 2^250942840 is an apocalyptic number.

250942840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250942840 is an abundant number, since it is smaller than the sum of its proper divisors (326813240).

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

250942840 is a wasteful number, since it uses less digits than its factorization.

250942840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145951 (or 145947 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 250942840 is about 15841.1754614359. The cubic root of 250942840 is about 630.7514674447.

The spelling of 250942840 in words is "two hundred fifty million, nine hundred forty-two thousand, eight hundred forty".