249400470 has 32 divisors (see below), whose sum is σ = 652976640. Its totient is φ = 60460640.

The previous prime is 249400439. The next prime is 249400507. The reversal of 249400470 is 74004942.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377550 + ... + 378209.

It is an arithmetic number, because the mean of its divisors is an integer number (20405520).

Almost surely, 2^249400470 is an apocalyptic number.

249400470 is an abundant number, since it is smaller than the sum of its proper divisors (403576170).

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

249400470 is a wasteful number, since it uses less digits than its factorization.

249400470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755780.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 249400470 is about 15792.4181175652. The cubic root of 249400470 is about 629.4565482222.

The spelling of 249400470 in words is "two hundred forty-nine million, four hundred thousand, four hundred seventy".