42904866 has 8 divisors (see below), whose sum is σ = 85809744. Its totient is φ = 14301620.

The previous prime is 42904861. The next prime is 42904909. The reversal of 42904866 is 66840924.

It is a sphenic number, since it is the product of 3 distinct primes.

42904866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42904861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575400 + ... + 3575411.

It is an arithmetic number, because the mean of its divisors is an integer number (10726218).

Almost surely, 2^42904866 is an apocalyptic number.

42904866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42904866 is a wasteful number, since it uses less digits than its factorization.

42904866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150816.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 42904866 is about 6550.1806081970. The cubic root of 42904866 is about 350.0812491645.

The spelling of 42904866 in words is "forty-two million, nine hundred four thousand, eight hundred sixty-six".