249070990 has 32 divisors (see below), whose sum is σ = 513399744. Its totient is φ = 85224960.

The previous prime is 249070973. The next prime is 249070993. The reversal of 249070990 is 99070942.

249070990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249070993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34582 + ... + 41158.

It is an arithmetic number, because the mean of its divisors is an integer number (16043742).

Almost surely, 2^249070990 is an apocalyptic number.

249070990 is an abundant number, since it is smaller than the sum of its proper divisors (264328754).

249070990 is a wasteful number, since it uses less digits than its factorization.

249070990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 249070990 is about 15781.9830819831. The cubic root of 249070990 is about 629.1792368778.

The spelling of 249070990 in words is "two hundred forty-nine million, seventy thousand, nine hundred ninety".