40401121344 has 56 divisors (see below), whose sum is σ = 106909392480. Its totient is φ = 13465181184.

The previous prime is 40401121309. The next prime is 40401121351. The reversal of 40401121344 is 44312110404.

It is a super-2 number, since 2×40401121344² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634852 + ... + 2650140.

Almost surely, 2^40401121344 is an apocalyptic number.

It is an amenable number.

40401121344 is an abundant number, since it is smaller than the sum of its proper divisors (66508271136).

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

40401121344 is a wasteful number, since it uses less digits than its factorization.

40401121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29067 (or 29057 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40401121344 its reverse (44312110404), we get a palindrome (84713231748).

The spelling of 40401121344 in words is "forty billion, four hundred one million, one hundred twenty-one thousand, three hundred forty-four".