42094144 has 21 divisors (see below), whose sum is σ = 83633691. Its totient is φ = 21021120.

The previous prime is 42094141. The next prime is 42094147. The reversal of 42094144 is 44149024.

The square root of 42094144 is 6488.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (42094141) and next prime (42094147).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42094141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51499 + ... + 52309.

Almost surely, 2^42094144 is an apocalyptic number.

42094144 is the 6488-th square number.

It is an amenable number.

42094144 is a deficient number, since it is larger than the sum of its proper divisors (41539547).

42094144 is an frugal number, since it uses more digits than its factorization.

42094144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The cubic root of 42094144 is about 347.8621905567.

The spelling of 42094144 in words is "forty-two million, ninety-four thousand, one hundred forty-four".