249407404 has 12 divisors (see below), whose sum is σ = 439649784. Its totient is φ = 123793184.

The previous prime is 249407401. The next prime is 249407407. The reversal of 249407404 is 404704942.

It is an interprime number because it is at equal distance from previous prime (249407401) and next prime (249407407).

It is a self number, because there is not a number n which added to its sum of digits gives 249407404.

It is not an unprimeable number, because it can be changed into a prime (249407401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227014 + ... + 228109.

It is an arithmetic number, because the mean of its divisors is an integer number (36637482).

Almost surely, 2^249407404 is an apocalyptic number.

It is an amenable number.

249407404 is a deficient number, since it is larger than the sum of its proper divisors (190242380).

249407404 is a wasteful number, since it uses less digits than its factorization.

249407404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455264 (or 455262 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 249407404 is about 15792.6376517667. The cubic root of 249407404 is about 629.4623816933.

The spelling of 249407404 in words is "two hundred forty-nine million, four hundred seven thousand, four hundred four".