42837666 has 24 divisors (see below), whose sum is σ = 90331920. Its totient is φ = 13505616.

The previous prime is 42837659. The next prime is 42837713. The reversal of 42837666 is 66673824.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69576 + ... + 70188.

It is an arithmetic number, because the mean of its divisors is an integer number (3763830).

Almost surely, 2^42837666 is an apocalyptic number.

42837666 is an abundant number, since it is smaller than the sum of its proper divisors (47494254).

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

42837666 is an equidigital number, since it uses as much as digits as its factorization.

42837666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 637 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 42837666 is about 6545.0489684952. The cubic root of 42837666 is about 349.8983813834.

The spelling of 42837666 in words is "forty-two million, eight hundred thirty-seven thousand, six hundred sixty-six".