42168580 has 12 divisors (see below), whose sum is σ = 88554060. Its totient is φ = 16867424.

The previous prime is 42168563. The next prime is 42168601. The reversal of 42168580 is 8586124.

It can be written as a sum of positive squares in 2 ways, for example, as 31877316 + 10291264 = 5646^2 + 3208^2 .

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, 1054195 + ... + 1054234.

It is an arithmetic number, because the mean of its divisors is an integer number (7379505).

Almost surely, 2^42168580 is an apocalyptic number.

It is an amenable number.

42168580 is an abundant number, since it is smaller than the sum of its proper divisors (46385480).

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

42168580 is a wasteful number, since it uses less digits than its factorization.

42168580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108438 (or 2108436 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 42168580 is about 6493.7339027712. The cubic root of 42168580 is about 348.0671139330.

The spelling of 42168580 in words is "forty-two million, one hundred sixty-eight thousand, five hundred eighty".