408467628 has 18 divisors (see below), whose sum is σ = 1032515484. Its totient is φ = 136155864.

The previous prime is 408467627. The next prime is 408467663. The reversal of 408467628 is 826764804.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (408467627) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5673126 + ... + 5673197.

Almost surely, 2^408467628 is an apocalyptic number.

It is an amenable number.

408467628 is an abundant number, since it is smaller than the sum of its proper divisors (624047856).

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

408467628 is a wasteful number, since it uses less digits than its factorization.

408467628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346333 (or 11346328 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 408467628 is about 20210.5820796928. The cubic root of 408467628 is about 741.9692060561.

The spelling of 408467628 in words is "four hundred eight million, four hundred sixty-seven thousand, six hundred twenty-eight".