42670644 has 24 divisors (see below), whose sum is σ = 99677760. Its totient is φ = 14207424.

The previous prime is 42670619. The next prime is 42670651. The reversal of 42670644 is 44607624.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14272 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (4153240).

Almost surely, 2^42670644 is an apocalyptic number.

It is an amenable number.

42670644 is an abundant number, since it is smaller than the sum of its proper divisors (57007116).

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

42670644 is a wasteful number, since it uses less digits than its factorization.

42670644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 42670644 is about 6532.2770914896. The cubic root of 42670644 is about 349.4430434343.

The spelling of 42670644 in words is "forty-two million, six hundred seventy thousand, six hundred forty-four".