400676705 has 32 divisors (see below), whose sum is σ = 583123968. Its totient is φ = 260294400.

The previous prime is 400676701. The next prime is 400676743. The reversal of 400676705 is 507676004.

400676705 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 400676705 - 2² = 400676701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400676701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13127 + ... + 31203.

It is an arithmetic number, because the mean of its divisors is an integer number (18222624).

Almost surely, 2^400676705 is an apocalyptic number.

It is an amenable number.

400676705 is a deficient number, since it is larger than the sum of its proper divisors (182447263).

400676705 is a wasteful number, since it uses less digits than its factorization.

400676705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18137.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 400676705 is about 20016.9104758951. The cubic root of 400676705 is about 737.2215660613.

The spelling of 400676705 in words is "four hundred million, six hundred seventy-six thousand, seven hundred five".