401446402680 has 64 divisors (see below), whose sum is σ = 1215388231200. Its totient is φ = 106070238720.

The previous prime is 401446402663. The next prime is 401446402697. The reversal of 401446402680 is 86204644104.

It is an interprime number because it is at equal distance from previous prime (401446402663) and next prime (401446402697).

It is a super-2 number, since 2×401446402680² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15332731 + ... + 15358890.

Almost surely, 2^401446402680 is an apocalyptic number.

401446402680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401446402680 is an abundant number, since it is smaller than the sum of its proper divisors (813941828520).

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

401446402680 is a wasteful number, since it uses less digits than its factorization.

401446402680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30691744 (or 30691740 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The spelling of 401446402680 in words is "four hundred one billion, four hundred forty-six million, four hundred two thousand, six hundred eighty".