401672389972 has 24 divisors (see below), whose sum is σ = 831046325760. Its totient is φ = 166209264480.

The previous prime is 401672389889. The next prime is 401672389981. The reversal of 401672389972 is 279983276104.

It is a super-2 number, since 2×401672389972² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247334404 + ... + 247336027.

It is an arithmetic number, because the mean of its divisors is an integer number (34626930240).

Almost surely, 2^401672389972 is an apocalyptic number.

It is an amenable number.

401672389972 is an abundant number, since it is smaller than the sum of its proper divisors (429373935788).

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

401672389972 is a wasteful number, since it uses less digits than its factorization.

401672389972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494670471 (or 494670469 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 401672389972 in words is "four hundred one billion, six hundred seventy-two million, three hundred eighty-nine thousand, nine hundred seventy-two".