249562742 has 48 divisors (see below), whose sum is σ = 462520800. Its totient is φ = 100129920.

The previous prime is 249562727. The next prime is 249562763. The reversal of 249562742 is 247265942.

It is a self number, because there is not a number n which added to its sum of digits gives 249562742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70634 + ... + 74082.

It is an arithmetic number, because the mean of its divisors is an integer number (9635850).

Almost surely, 2^249562742 is an apocalyptic number.

249562742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249562742 is a deficient number, since it is larger than the sum of its proper divisors (212958058).

249562742 is a wasteful number, since it uses less digits than its factorization.

249562742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509 (or 3498 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 249562742 is about 15797.5549373946. The cubic root of 249562742 is about 629.5930369090.

The spelling of 249562742 in words is "two hundred forty-nine million, five hundred sixty-two thousand, seven hundred forty-two".