406684247524 has 27 divisors (see below), whose sum is σ = 714338731561. Its totient is φ = 202590254240.

The previous prime is 406684247521. The next prime is 406684247533. The reversal of 406684247524 is 425742486604.

The square root of 406684247524 is 637718.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1068113124 + 405616134400 = 32682^2 + 636880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406684247521) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 534407304 + ... + 534408064.

Almost surely, 2^406684247524 is an apocalyptic number.

406684247524 is the 637718-th square number.

It is an amenable number.

406684247524 is a deficient number, since it is larger than the sum of its proper divisors (307654484037).

406684247524 is an frugal number, since it uses more digits than its factorization.

406684247524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 52.

The spelling of 406684247524 in words is "four hundred six billion, six hundred eighty-four million, two hundred forty-seven thousand, five hundred twenty-four".