42531040432 has 20 divisors (see below), whose sum is σ = 82794437176. Its totient is φ = 21164734080.

The previous prime is 42531040421. The next prime is 42531040459. The reversal of 42531040432 is 23404013524.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42531040432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6295653 + ... + 6302404.

Almost surely, 2^42531040432 is an apocalyptic number.

It is an amenable number.

42531040432 is a deficient number, since it is larger than the sum of its proper divisors (40263396744).

42531040432 is a wasteful number, since it uses less digits than its factorization.

42531040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598276 (or 12598270 counting only the distinct ones).

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

Adding to 42531040432 its reverse (23404013524), we get a palindrome (65935053956).

The spelling of 42531040432 in words is "forty-two billion, five hundred thirty-one million, forty thousand, four hundred thirty-two".