42644910 has 64 divisors (see below), whose sum is σ = 127609344. Its totient is φ = 8860800.

The previous prime is 42644909. The next prime is 42644923. The reversal of 42644910 is 1944624.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6921 + ... + 11540.

It is an arithmetic number, because the mean of its divisors is an integer number (1993896).

Almost surely, 2^42644910 is an apocalyptic number.

42644910 is an abundant number, since it is smaller than the sum of its proper divisors (84964434).

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

42644910 is a wasteful number, since it uses less digits than its factorization.

42644910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18489.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42644910 is about 6530.3070371920. The cubic root of 42644910 is about 349.3727814244.

The spelling of 42644910 in words is "forty-two million, six hundred forty-four thousand, nine hundred ten".