400407366 has 16 divisors (see below), whose sum is σ = 801275904. Its totient is φ = 133392264.

The previous prime is 400407347. The next prime is 400407373. The reversal of 400407366 is 663704004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7366 + ... + 29241.

It is an arithmetic number, because the mean of its divisors is an integer number (50079744).

Almost surely, 2^400407366 is an apocalyptic number.

400407366 is an abundant number, since it is smaller than the sum of its proper divisors (400868538).

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

400407366 is a wasteful number, since it uses less digits than its factorization.

400407366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38435.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 400407366 is about 20010.1815583967. The cubic root of 400407366 is about 737.0563397284.

The spelling of 400407366 in words is "four hundred million, four hundred seven thousand, three hundred sixty-six".