4390440436431 has 112 divisors (see below), whose sum is σ = 8038654747200. Its totient is φ = 2339577437184.

The previous prime is 4390440436387. The next prime is 4390440436451. The reversal of 4390440436431 is 1346340440934.

4390440436431 is a `hidden beast` number, since 43 + 90 + 440 + 43 + 6 + 43 + 1 = 666.

It is not a de Polignac number, because 4390440436431 - 2⁹ = 4390440435919 is a prime.

It is a super-2 number, since 2×4390440436431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390440436451) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9223705 + ... + 9688013.

It is an arithmetic number, because the mean of its divisors is an integer number (71773703100).

Almost surely, 2^{4390440436431} is an apocalyptic number.

4390440436431 is a deficient number, since it is larger than the sum of its proper divisors (3648214310769).

4390440436431 is a wasteful number, since it uses less digits than its factorization.

4390440436431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464460 (or 464445 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 4390440436431 in words is "four trillion, three hundred ninety billion, four hundred forty million, four hundred thirty-six thousand, four hundred thirty-one".