42979518 has 16 divisors (see below), whose sum is σ = 95510160. Its totient is φ = 14326488.

The previous prime is 42979507. The next prime is 42979523. The reversal of 42979518 is 81597924.

42979518 is a `hidden beast` number, since 42 + 97 + 9 + 518 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397905 + ... + 398012.

It is an arithmetic number, because the mean of its divisors is an integer number (5969385).

Almost surely, 2^42979518 is an apocalyptic number.

42979518 is an abundant number, since it is smaller than the sum of its proper divisors (52530642).

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

42979518 is a wasteful number, since it uses less digits than its factorization.

42979518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795928 (or 795922 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 42979518 is about 6555.8766004250. The cubic root of 42979518 is about 350.2841719338.

The spelling of 42979518 in words is "forty-two million, nine hundred seventy-nine thousand, five hundred eighteen".