400427670 has 16 divisors (see below), whose sum is σ = 961026480. Its totient is φ = 106780704.

The previous prime is 400427663. The next prime is 400427681. The reversal of 400427670 is 76724004.

400427670 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 13347589 = 400427670 / (4 + 0 + 0 + 4 + 2 + 7 + 6 + 7 + 0).

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, 6673765 + ... + 6673824.

It is an arithmetic number, because the mean of its divisors is an integer number (60064155).

Almost surely, 2^400427670 is an apocalyptic number.

400427670 is an abundant number, since it is smaller than the sum of its proper divisors (560598810).

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

400427670 is a wasteful number, since it uses less digits than its factorization.

400427670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347599.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 400427670 is about 20010.6888936888. The cubic root of 400427670 is about 737.0687978233.

The spelling of 400427670 in words is "four hundred million, four hundred twenty-seven thousand, six hundred seventy".