40430540431 has 4 divisors (see below), whose sum is σ = 40445029264. Its totient is φ = 40416051600.

The previous prime is 40430540369. The next prime is 40430540453. The reversal of 40430540431 is 13404503404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40430540431 - 2²³ = 40422151823 is a prime.

It is a super-2 number, since 2×40430540431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40430540431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40430540471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240230 + ... + 7245811.

It is an arithmetic number, because the mean of its divisors is an integer number (10111257316).

Almost surely, 2^40430540431 is an apocalyptic number.

40430540431 is a deficient number, since it is larger than the sum of its proper divisors (14488833).

40430540431 is a wasteful number, since it uses less digits than its factorization.

40430540431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488832.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 40430540431 in words is "forty billion, four hundred thirty million, five hundred forty thousand, four hundred thirty-one".