42665650 has 24 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 16929360.

The previous prime is 42665627. The next prime is 42665663. The reversal of 42665650 is 5656624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2991 + ... + 9709.

It is an arithmetic number, because the mean of its divisors is an integer number (3333120).

Almost surely, 2^42665650 is an apocalyptic number.

42665650 is a deficient number, since it is larger than the sum of its proper divisors (37329230).

42665650 is a wasteful number, since it uses less digits than its factorization.

42665650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6858 (or 6853 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 42665650 is about 6531.8948246278. The cubic root of 42665650 is about 349.4294104345.

The spelling of 42665650 in words is "forty-two million, six hundred sixty-five thousand, six hundred fifty".