42664250 has 32 divisors (see below), whose sum is σ = 81589248. Its totient is φ = 16698000.

The previous prime is 42664229. The next prime is 42664261. The reversal of 42664250 is 5246624.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9935 + ... + 13565.

It is an arithmetic number, because the mean of its divisors is an integer number (2549664).

Almost surely, 2^42664250 is an apocalyptic number.

42664250 is a deficient number, since it is larger than the sum of its proper divisors (38924998).

42664250 is a wasteful number, since it uses less digits than its factorization.

42664250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 42664250 is about 6531.7876572957. The cubic root of 42664250 is about 349.4255884175.

The spelling of 42664250 in words is "forty-two million, six hundred sixty-four thousand, two hundred fifty".