402464727 has 16 divisors (see below), whose sum is σ = 681422080. Its totient is φ = 229979736.

The previous prime is 402464683. The next prime is 402464729. The reversal of 402464727 is 727464204.

It is a happy number.

402464727 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 647 + 2 + 7 = 666.

It is not a de Polignac number, because 402464727 - 2⁶ = 402464663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402464691 and 402464700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402464729) 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, 1064533 + ... + 1064910.

It is an arithmetic number, because the mean of its divisors is an integer number (42588880).

Almost surely, 2^402464727 is an apocalyptic number.

402464727 is a deficient number, since it is larger than the sum of its proper divisors (278957353).

402464727 is a wasteful number, since it uses less digits than its factorization.

402464727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129459 (or 2129453 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 402464727 is about 20061.5235463312. The cubic root of 402464727 is about 738.3165573026.

The spelling of 402464727 in words is "four hundred two million, four hundred sixty-four thousand, seven hundred twenty-seven".