406249724 has 12 divisors (see below), whose sum is σ = 727470744. Its totient is φ = 198400944.

The previous prime is 406249687. The next prime is 406249729. The reversal of 406249724 is 427942604.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406249729) 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, 1180787 + ... + 1181130.

It is an arithmetic number, because the mean of its divisors is an integer number (60622562).

Almost surely, 2^406249724 is an apocalyptic number.

It is an amenable number.

406249724 is a deficient number, since it is larger than the sum of its proper divisors (321221020).

406249724 is a wasteful number, since it uses less digits than its factorization.

406249724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361964 (or 2361962 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 406249724 is about 20155.6375240279. The cubic root of 406249724 is about 740.6238493790.

The spelling of 406249724 in words is "four hundred six million, two hundred forty-nine thousand, seven hundred twenty-four".