401501668 has 12 divisors (see below), whose sum is σ = 703343872. Its totient is φ = 200546280.

The previous prime is 401501657. The next prime is 401501669. The reversal of 401501668 is 866105104.

It is a super-2 number, since 2×401501668² = 322407178813564448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401501669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46680 + ... + 54607.

Almost surely, 2^401501668 is an apocalyptic number.

It is an amenable number.

401501668 is a deficient number, since it is larger than the sum of its proper divisors (301842204).

401501668 is a wasteful number, since it uses less digits than its factorization.

401501668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102282 (or 102280 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 401501668 is about 20037.5065315024. The cubic root of 401501668 is about 737.7271803423.

The spelling of 401501668 in words is "four hundred one million, five hundred one thousand, six hundred sixty-eight".