42299660 has 24 divisors (see below), whose sum is σ = 95662896. Its totient is φ = 15618240.

The previous prime is 42299651. The next prime is 42299687. The reversal of 42299660 is 6699224.

It is a super-2 number, since 2×42299660² = 3578522472231200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81086 + ... + 81605.

It is an arithmetic number, because the mean of its divisors is an integer number (3985954).

Almost surely, 2^42299660 is an apocalyptic number.

It is an amenable number.

42299660 is an abundant number, since it is smaller than the sum of its proper divisors (53363236).

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

42299660 is a wasteful number, since it uses less digits than its factorization.

42299660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162713 (or 162711 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 42299660 is about 6503.8188781669. The cubic root of 42299660 is about 348.4273935884.

The spelling of 42299660 in words is "forty-two million, two hundred ninety-nine thousand, six hundred sixty".