42989575 has 6 divisors (see below), whose sum is σ = 53307104. Its totient is φ = 34391640.

The previous prime is 42989489. The next prime is 42989587. The reversal of 42989575 is 57598924.

It is a de Polignac number, because none of the positive numbers 2^k-42989575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 859767 + ... + 859816.

Almost surely, 2^42989575 is an apocalyptic number.

42989575 is a deficient number, since it is larger than the sum of its proper divisors (10317529).

42989575 is a wasteful number, since it uses less digits than its factorization.

42989575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719593 (or 1719588 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 42989575 is about 6556.6435773191. The cubic root of 42989575 is about 350.3114914055.

The spelling of 42989575 in words is "forty-two million, nine hundred eighty-nine thousand, five hundred seventy-five".