400956806 has 8 divisors (see below), whose sum is σ = 601611744. Its totient is φ = 200419560.

The previous prime is 400956799. The next prime is 400956817. The reversal of 400956806 is 608659004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 400956806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20345 + ... + 34868.

It is an arithmetic number, because the mean of its divisors is an integer number (75201468).

Almost surely, 2^400956806 is an apocalyptic number.

400956806 is a deficient number, since it is larger than the sum of its proper divisors (200654938).

400956806 is a wasteful number, since it uses less digits than its factorization.

400956806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58846.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 400956806 is about 20023.9058627432. The cubic root of 400956806 is about 737.3933158331.

The spelling of 400956806 in words is "four hundred million, nine hundred fifty-six thousand, eight hundred six".