401943667320 has 384 divisors, whose sum is σ = 1449722514240. Its totient is φ = 95939665920.

The previous prime is 401943667319. The next prime is 401943667339. The reversal of 401943667320 is 23766349104.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53156340 + ... + 53163900.

Almost surely, 2^401943667320 is an apocalyptic number.

401943667320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401943667320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724861257120).

401943667320 is an abundant number, since it is smaller than the sum of its proper divisors (1047778846920).

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

401943667320 is a wasteful number, since it uses less digits than its factorization.

401943667320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7935 (or 7928 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 401943667320 in words is "four hundred one billion, nine hundred forty-three million, six hundred sixty-seven thousand, three hundred twenty".