406625808 has 40 divisors (see below), whose sum is σ = 1060100800. Its totient is φ = 134296704.

The previous prime is 406625789. The next prime is 406625837. The reversal of 406625808 is 808526604.

It is a super-3 number, since 3×406625808³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33628 + ... + 44091.

It is an arithmetic number, because the mean of its divisors is an integer number (26502520).

Almost surely, 2^406625808 is an apocalyptic number.

406625808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

406625808 is an abundant number, since it is smaller than the sum of its proper divisors (653474992).

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

406625808 is a wasteful number, since it uses less digits than its factorization.

406625808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77839 (or 77833 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 406625808 is about 20164.9648648343. The cubic root of 406625808 is about 740.8523220450.

The spelling of 406625808 in words is "four hundred six million, six hundred twenty-five thousand, eight hundred eight".