400670080 has 64 divisors (see below), whose sum is σ = 960289200. Its totient is φ = 159860736.

The previous prime is 400670069. The next prime is 400670113. The reversal of 400670080 is 80076004.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 453319 + ... + 454201.

Almost surely, 2^400670080 is an apocalyptic number.

400670080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400670080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480144600).

400670080 is an abundant number, since it is smaller than the sum of its proper divisors (559619120).

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

400670080 is an equidigital number, since it uses as much as digits as its factorization.

400670080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 400670080 is about 20016.7449901326. The cubic root of 400670080 is about 737.2175028354.

The spelling of 400670080 in words is "four hundred million, six hundred seventy thousand, eighty".