40401321430044 has 24 divisors (see below), whose sum is σ = 94660910798608. Its totient is φ = 13411227029760.

The previous prime is 40401321430033. The next prime is 40401321430049. The reversal of 40401321430044 is 44003412310404.

It is a super-2 number, since 2×40401321430044² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40401321429993 and 40401321430020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401321430049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6985011187 + ... + 6985016970.

Almost surely, 2^{40401321430044} is an apocalyptic number.

It is an amenable number.

40401321430044 is an abundant number, since it is smaller than the sum of its proper divisors (54259589368564).

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

40401321430044 is a wasteful number, since it uses less digits than its factorization.

40401321430044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13970028405 (or 13970028403 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 40401321430044 its reverse (44003412310404), we get a palindrome (84404733740448).

The spelling of 40401321430044 in words is "forty trillion, four hundred one billion, three hundred twenty-one million, four hundred thirty thousand, forty-four".