249934956 has 12 divisors (see below), whose sum is σ = 583181592. Its totient is φ = 83311648.

The previous prime is 249934931. The next prime is 249934999. The reversal of 249934956 is 659439942.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 249934899 and 249934908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10413945 + ... + 10413968.

It is an arithmetic number, because the mean of its divisors is an integer number (48598466).

Almost surely, 2^249934956 is an apocalyptic number.

It is an amenable number.

249934956 is an abundant number, since it is smaller than the sum of its proper divisors (333246636).

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

249934956 is a wasteful number, since it uses less digits than its factorization.

249934956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20827920 (or 20827918 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 51.

The square root of 249934956 is about 15809.3312951560. The cubic root of 249934956 is about 629.9058866721.

The spelling of 249934956 in words is "two hundred forty-nine million, nine hundred thirty-four thousand, nine hundred fifty-six".