249674042 has 4 divisors (see below), whose sum is σ = 374511066. Its totient is φ = 124837020.

The previous prime is 249674027. The next prime is 249674063. The reversal of 249674042 is 240476942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 130667761 + 119006281 = 11431^2 + 10909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 249673987 and 249674005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62418509 + ... + 62418512.

Almost surely, 2^249674042 is an apocalyptic number.

249674042 is a deficient number, since it is larger than the sum of its proper divisors (124837024).

249674042 is a wasteful number, since it uses less digits than its factorization.

249674042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124837023.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 249674042 is about 15801.0772417579. The cubic root of 249674042 is about 629.6866183065.

The spelling of 249674042 in words is "two hundred forty-nine million, six hundred seventy-four thousand, forty-two".