249343932220 has 24 divisors (see below), whose sum is σ = 523681275600. Its totient is φ = 99726331392.

The previous prime is 249343932217. The next prime is 249343932251. The reversal of 249343932220 is 22239343942.

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, 519550 + ... + 876709.

It is an arithmetic number, because the mean of its divisors is an integer number (21820053150).

Almost surely, 2^249343932220 is an apocalyptic number.

249343932220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249343932220 is an abundant number, since it is smaller than the sum of its proper divisors (274337343380).

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

249343932220 is a wasteful number, since it uses less digits than its factorization.

249343932220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405197 (or 1405195 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 249343932220 in words is "two hundred forty-nine billion, three hundred forty-three million, nine hundred thirty-two thousand, two hundred twenty".