406677632 has 16 divisors (see below), whose sum is σ = 810178350. Its totient is φ = 203338752.

The previous prime is 406677599. The next prime is 406677679. The reversal of 406677632 is 236776604.

It can be written as a sum of positive squares in only one way, i.e., 292273216 + 114404416 = 17096^2 + 10696^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 406677632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1588457 + ... + 1588712.

Almost surely, 2^406677632 is an apocalyptic number.

It is an amenable number.

406677632 is a deficient number, since it is larger than the sum of its proper divisors (403500718).

406677632 is an equidigital number, since it uses as much as digits as its factorization.

406677632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177183 (or 3177171 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 406677632 is about 20166.2498248931. The cubic root of 406677632 is about 740.8837943052.

The spelling of 406677632 in words is "four hundred six million, six hundred seventy-seven thousand, six hundred thirty-two".