249940900 has 36 divisors (see below), whose sum is σ = 591680880. Its totient is φ = 90887200.

The previous prime is 249940871. The next prime is 249940949. The reversal of 249940900 is 9049942.

It is a self number, because there is not a number n which added to its sum of digits gives 249940900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112510 + ... + 114709.

It is an arithmetic number, because the mean of its divisors is an integer number (16435580).

Almost surely, 2^249940900 is an apocalyptic number.

249940900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249940900 is an abundant number, since it is smaller than the sum of its proper divisors (341739980).

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

249940900 is a wasteful number, since it uses less digits than its factorization.

249940900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227244 (or 227237 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 249940900 is about 15809.5192842793. The cubic root of 249940900 is about 629.9108801459.

It can be divided in two parts, 249 and 940900, that added together give a palindrome (941149).

The spelling of 249940900 in words is "two hundred forty-nine million, nine hundred forty thousand, nine hundred".