401838202020 has 48 divisors (see below), whose sum is σ = 1125212800320. Its totient is φ = 107150583936.

The previous prime is 401838201983. The next prime is 401838202033. The reversal of 401838202020 is 20202838104.

It is a super-2 number, since 2×401838202020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 887559 + ... + 1261521.

It is an arithmetic number, because the mean of its divisors is an integer number (23441933340).

Almost surely, 2^401838202020 is an apocalyptic number.

It is an amenable number.

401838202020 is an abundant number, since it is smaller than the sum of its proper divisors (723374598300).

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

401838202020 is a wasteful number, since it uses less digits than its factorization.

401838202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391884 (or 391882 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 401838202020 in words is "four hundred one billion, eight hundred thirty-eight million, two hundred two thousand, twenty".