400676680 has 16 divisors (see below), whose sum is σ = 901522620. Its totient is φ = 160270656.

The previous prime is 400676677. The next prime is 400676681. The reversal of 400676680 is 86676004.

It can be written as a sum of positive squares in 2 ways, for example, as 374112964 + 26563716 = 19342^2 + 5154^2 .

It is not an unprimeable number, because it can be changed into a prime (400676681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5008419 + ... + 5008498.

Almost surely, 2^400676680 is an apocalyptic number.

400676680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400676680 is an abundant number, since it is smaller than the sum of its proper divisors (500845940).

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

400676680 is a wasteful number, since it uses less digits than its factorization.

400676680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016928 (or 10016924 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 400676680 is about 20016.9098514231. The cubic root of 400676680 is about 737.2215507284.

The spelling of 400676680 in words is "four hundred million, six hundred seventy-six thousand, six hundred eighty".