249673442 has 16 divisors (see below), whose sum is σ = 390354432. Its totient is φ = 119633760.

The previous prime is 249673421. The next prime is 249673483. The reversal of 249673442 is 244376942.

It is a self number, because there is not a number n which added to its sum of digits gives 249673442.

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, 13163 + ... + 25934.

It is an arithmetic number, because the mean of its divisors is an integer number (24397152).

Almost surely, 2^249673442 is an apocalyptic number.

249673442 is a deficient number, since it is larger than the sum of its proper divisors (140680990).

249673442 is a wasteful number, since it uses less digits than its factorization.

249673442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39233.

The product of its digits is 290304, while the sum is 41.

The square root of 249673442 is about 15801.0582556992. The cubic root of 249673442 is about 629.6861138991.

The spelling of 249673442 in words is "two hundred forty-nine million, six hundred seventy-three thousand, four hundred forty-two".