249685074 has 12 divisors (see below), whose sum is σ = 540984366. Its totient is φ = 83228352.

The previous prime is 249685063. The next prime is 249685087. The reversal of 249685074 is 470586942.

It is a happy number.

249685074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 246647025 + 3038049 = 15705^2 + 1743^2 .

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, 6935679 + ... + 6935714.

Almost surely, 2^249685074 is an apocalyptic number.

249685074 is an abundant number, since it is smaller than the sum of its proper divisors (291299292).

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

249685074 is a wasteful number, since it uses less digits than its factorization.

249685074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13871401 (or 13871398 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 249685074 is about 15801.4263280249. The cubic root of 249685074 is about 629.6958925324.

The spelling of 249685074 in words is "two hundred forty-nine million, six hundred eighty-five thousand, seventy-four".