40244412431 has 4 divisors (see below), whose sum is σ = 40244821752. Its totient is φ = 40244003112.

The previous prime is 40244412427. The next prime is 40244412463. The reversal of 40244412431 is 13421444204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40244412431 - 2² = 40244412427 is a prime.

It is a super-2 number, since 2×40244412431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40244412394 and 40244412403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244412331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41561 + ... + 286733.

It is an arithmetic number, because the mean of its divisors is an integer number (10061205438).

Almost surely, 2^40244412431 is an apocalyptic number.

40244412431 is a deficient number, since it is larger than the sum of its proper divisors (409321).

40244412431 is a wasteful number, since it uses less digits than its factorization.

40244412431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409320.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 40244412431 its reverse (13421444204), we get a palindrome (53665856635).

The spelling of 40244412431 in words is "forty billion, two hundred forty-four million, four hundred twelve thousand, four hundred thirty-one".