400407403667 has 4 divisors (see below), whose sum is σ = 408926710176. Its totient is φ = 391888097160.

The previous prime is 400407403661. The next prime is 400407403703. The reversal of 400407403667 is 766304704004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400407403667 - 2⁴ = 400407403651 is a prime.

It is a super-2 number, since 2×400407403667² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400407403661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4259653184 + ... + 4259653277.

It is an arithmetic number, because the mean of its divisors is an integer number (102231677544).

Almost surely, 2^400407403667 is an apocalyptic number.

400407403667 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

400407403667 is a deficient number, since it is larger than the sum of its proper divisors (8519306509).

400407403667 is an equidigital number, since it uses as much as digits as its factorization.

400407403667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519306508.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 400407403667 in words is "four hundred billion, four hundred seven million, four hundred three thousand, six hundred sixty-seven".