400311967 has 8 divisors (see below), whose sum is σ = 436879872. Its totient is φ = 363773400.

The previous prime is 400311953. The next prime is 400311979. The reversal of 400311967 is 769113004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 400311967 - 2⁷ = 400311839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400311907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29092 + ... + 40582.

It is an arithmetic number, because the mean of its divisors is an integer number (54609984).

Almost surely, 2^400311967 is an apocalyptic number.

400311967 is a deficient number, since it is larger than the sum of its proper divisors (36567905).

400311967 is a wasteful number, since it uses less digits than its factorization.

400311967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 400311967 is about 20007.7976549144. The cubic root of 400311967 is about 736.9977993278.

The spelling of 400311967 in words is "four hundred million, three hundred eleven thousand, nine hundred sixty-seven".