400044110211240 has 128 divisors (see below), whose sum is σ = 1309323385353600. Its totient is φ = 96973863275520.

The previous prime is 400044110211169. The next prime is 400044110211257. The reversal of 400044110211240 is 42112011440004.

It is a super-2 number, since 2×400044110211240² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 400044110211240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9435954 + ... + 29818206.

It is an arithmetic number, because the mean of its divisors is an integer number (10229088948075).

Almost surely, 2^{400044110211240} is an apocalyptic number.

400044110211240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400044110211240 is an abundant number, since it is smaller than the sum of its proper divisors (909279275142360).

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

400044110211240 is a wasteful number, since it uses less digits than its factorization.

400044110211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20397147 (or 20397143 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 400044110211240 its reverse (42112011440004), we get a palindrome (442156121651244).

The spelling of 400044110211240 in words is "four hundred trillion, forty-four billion, one hundred ten million, two hundred eleven thousand, two hundred forty".