40431134044440 has 96 divisors (see below), whose sum is σ = 131402929291920. Its totient is φ = 10781492676864.

The previous prime is 40431134044423. The next prime is 40431134044463. The reversal of 40431134044440 is 4444043113404.

40431134044440 is a `hidden beast` number, since 4 + 0 + 43 + 1 + 134 + 0 + 44 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40431134044395 and 40431134044404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27955339 + ... + 29366021.

Almost surely, 2^{40431134044440} is an apocalyptic number.

40431134044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40431134044440 is an abundant number, since it is smaller than the sum of its proper divisors (90971795247480).

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

40431134044440 is a wasteful number, since it uses less digits than its factorization.

40431134044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490313 (or 1490306 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 40431134044440 its reverse (4444043113404), we get a palindrome (44875177157844).

The spelling of 40431134044440 in words is "forty trillion, four hundred thirty-one billion, one hundred thirty-four million, forty-four thousand, four hundred forty".