42403040660 has 12 divisors (see below), whose sum is σ = 89046385428. Its totient is φ = 16961216256.

The previous prime is 42403040633. The next prime is 42403040671. The reversal of 42403040660 is 6604030424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8605159696 + 33797880964 = 92764^2 + 183842^2 .

It is a super-2 number, since 2×42403040660² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 1060075997 + ... + 1060076036.

It is an arithmetic number, because the mean of its divisors is an integer number (7420532119).

Almost surely, 2^42403040660 is an apocalyptic number.

It is an amenable number.

42403040660 is an abundant number, since it is smaller than the sum of its proper divisors (46643344768).

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

42403040660 is a wasteful number, since it uses less digits than its factorization.

42403040660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120152042 (or 2120152040 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The spelling of 42403040660 in words is "forty-two billion, four hundred three million, forty thousand, six hundred sixty".