42660140404 has 24 divisors (see below), whose sum is σ = 86718977408. Its totient is φ = 17983196640.

The previous prime is 42660140401. The next prime is 42660140417. The reversal of 42660140404 is 40404106624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42660140401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12486624 + ... + 12490039.

Almost surely, 2^42660140404 is an apocalyptic number.

It is an amenable number.

42660140404 is an abundant number, since it is smaller than the sum of its proper divisors (44058837004).

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

42660140404 is a wasteful number, since it uses less digits than its factorization.

42660140404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24976735 (or 24976733 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 42660140404 in words is "forty-two billion, six hundred sixty million, one hundred forty thousand, four hundred four".