407990447492 has 12 divisors (see below), whose sum is σ = 713989326876. Its totient is φ = 203993496960.

The previous prime is 407990447483. The next prime is 407990447521. The reversal of 407990447492 is 294744099704.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 355912469056 + 52077978436 = 596584^2 + 228206^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203888 + ... + 926040.

It is an arithmetic number, because the mean of its divisors is an integer number (59499110573).

Almost surely, 2^407990447492 is an apocalyptic number.

It is an amenable number.

407990447492 is a deficient number, since it is larger than the sum of its proper divisors (305998879384).

407990447492 is a wasteful number, since it uses less digits than its factorization.

407990447492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863398 (or 863396 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 407990447492 in words is "four hundred seven billion, nine hundred ninety million, four hundred forty-seven thousand, four hundred ninety-two".