406992490724 has 12 divisors (see below), whose sum is σ = 712244106924. Its totient is φ = 203494174464.

The previous prime is 406992490717. The next prime is 406992490769. The reversal of 406992490724 is 427094299604.

It can be written as a sum of positive squares in 2 ways, for example, as 88546714624 + 318445776100 = 297568^2 + 564310^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 406992490724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23009 + ... + 902504.

It is an arithmetic number, because the mean of its divisors is an integer number (59353675577).

Almost surely, 2^406992490724 is an apocalyptic number.

It is an amenable number.

406992490724 is a deficient number, since it is larger than the sum of its proper divisors (305251616200).

406992490724 is a wasteful number, since it uses less digits than its factorization.

406992490724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035454 (or 1035452 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 406992490724 in words is "four hundred six billion, nine hundred ninety-two million, four hundred ninety thousand, seven hundred twenty-four".