401257689376 has 24 divisors (see below), whose sum is σ = 790200151020. Its totient is φ = 200571936768.

The previous prime is 401257689367. The next prime is 401257689397. The reversal of 401257689376 is 673986752104.

It can be written as a sum of positive squares in 2 ways, for example, as 400106851600 + 1150837776 = 632540^2 + 33924^2 .

It is a super-2 number, since 2×401257689376² (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 401257689376.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663681 + ... + 1889536.

It is a 1-persistent number, because it is pandigital, but 2⋅401257689376 = 802515378752 is not.

Almost surely, 2^401257689376 is an apocalyptic number.

It is an amenable number.

401257689376 is a deficient number, since it is larger than the sum of its proper divisors (388942461644).

401257689376 is a wasteful number, since it uses less digits than its factorization.

401257689376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556756 (or 3556748 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 401257689376 in words is "four hundred one billion, two hundred fifty-seven million, six hundred eighty-nine thousand, three hundred seventy-six".