405648076 has 6 divisors (see below), whose sum is σ = 709884140. Its totient is φ = 202824036.

The previous prime is 405648071. The next prime is 405648097. The reversal of 405648076 is 670846504.

It is not an unprimeable number, because it can be changed into a prime (405648071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50706006 + ... + 50706013.

Almost surely, 2^405648076 is an apocalyptic number.

It is an amenable number.

405648076 is a deficient number, since it is larger than the sum of its proper divisors (304236064).

405648076 is a wasteful number, since it uses less digits than its factorization.

405648076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101412023 (or 101412021 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 405648076 is about 20140.7069389334. The cubic root of 405648076 is about 740.2580521980.

The spelling of 405648076 in words is "four hundred five million, six hundred forty-eight thousand, seventy-six".