401290666344 has 32 divisors (see below), whose sum is σ = 1114696296000. Its totient is φ = 133763555376.

The previous prime is 401290666339. The next prime is 401290666349. The reversal of 401290666344 is 443666092104.

It is an interprime number because it is at equal distance from previous prime (401290666339) and next prime (401290666349).

It is a super-2 number, since 2×401290666344² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401290666344.

It is not an unprimeable number, because it can be changed into a prime (401290666349) 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, 928913364 + ... + 928913795.

It is an arithmetic number, because the mean of its divisors is an integer number (34834259250).

Almost surely, 2^401290666344 is an apocalyptic number.

It is an amenable number.

401290666344 is an abundant number, since it is smaller than the sum of its proper divisors (713405629656).

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

401290666344 is a wasteful number, since it uses less digits than its factorization.

401290666344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857827174 (or 1857827164 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 401290666344 in words is "four hundred one billion, two hundred ninety million, six hundred sixty-six thousand, three hundred forty-four".