42972118 has 24 divisors (see below), whose sum is σ = 75300192. Its totient is φ = 18338544.

The previous prime is 42972109. The next prime is 42972131. The reversal of 42972118 is 81127924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26355 + ... + 27937.

It is an arithmetic number, because the mean of its divisors is an integer number (3137508).

Almost surely, 2^42972118 is an apocalyptic number.

42972118 is a deficient number, since it is larger than the sum of its proper divisors (32328074).

42972118 is a wasteful number, since it uses less digits than its factorization.

42972118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1869 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 42972118 is about 6555.3121969896. The cubic root of 42972118 is about 350.2640673835.

The spelling of 42972118 in words is "forty-two million, nine hundred seventy-two thousand, one hundred eighteen".