249018942 has 16 divisors (see below), whose sum is σ = 499741200. Its totient is φ = 82722432.

The previous prime is 249018929. The next prime is 249018961. The reversal of 249018942 is 249810942.

249018942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 249018942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69067 + ... + 72582.

It is an arithmetic number, because the mean of its divisors is an integer number (31233825).

Almost surely, 2^249018942 is an apocalyptic number.

249018942 is an abundant number, since it is smaller than the sum of its proper divisors (250722258).

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

249018942 is a wasteful number, since it uses less digits than its factorization.

249018942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141947.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 249018942 is about 15780.3340268830. The cubic root of 249018942 is about 629.1354076035.

The spelling of 249018942 in words is "two hundred forty-nine million, eighteen thousand, nine hundred forty-two".