249699072 has 72 divisors (see below), whose sum is σ = 759517696. Its totient is φ = 71341056.

The previous prime is 249699071. The next prime is 249699097. The reversal of 249699072 is 270996942.

249699072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249699072² = 124699253115322368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (249699071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17848 + ... + 28599.

Almost surely, 2^249699072 is an apocalyptic number.

It is an amenable number.

249699072 is an abundant number, since it is smaller than the sum of its proper divisors (509818624).

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

249699072 is an equidigital number, since it uses as much as digits as its factorization.

249699072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46473 (or 46459 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 249699072 is about 15801.8692565152. The cubic root of 249699072 is about 629.7076597802.

The spelling of 249699072 in words is "two hundred forty-nine million, six hundred ninety-nine thousand, seventy-two".