405396648 has 48 divisors (see below), whose sum is σ = 1104717120. Its totient is φ = 134299296.

The previous prime is 405396623. The next prime is 405396701. The reversal of 405396648 is 846693504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5536 + ... + 29007.

It is an arithmetic number, because the mean of its divisors is an integer number (23014940).

Almost surely, 2^405396648 is an apocalyptic number.

It is an amenable number.

405396648 is an abundant number, since it is smaller than the sum of its proper divisors (699320472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405396648 is a wasteful number, since it uses less digits than its factorization.

405396648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34718 (or 34711 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 405396648 is about 20134.4641845767. The cubic root of 405396648 is about 740.1050788207.

The spelling of 405396648 in words is "four hundred five million, three hundred ninety-six thousand, six hundred forty-eight".