42979534 has 8 divisors (see below), whose sum is σ = 69428520. Its totient is φ = 19836696.

The previous prime is 42979523. The next prime is 42979543. The reversal of 42979534 is 43597924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826504 + ... + 826555.

It is an arithmetic number, because the mean of its divisors is an integer number (8678565).

Almost surely, 2^42979534 is an apocalyptic number.

42979534 is a deficient number, since it is larger than the sum of its proper divisors (26448986).

42979534 is a wasteful number, since it uses less digits than its factorization.

42979534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653074.

The product of its digits is 272160, while the sum is 43.

The square root of 42979534 is about 6555.8778207041. The cubic root of 42979534 is about 350.2842154006.

It can be divided in two parts, 4297 and 9534, that added together give a palindrome (13831).

The spelling of 42979534 in words is "forty-two million, nine hundred seventy-nine thousand, five hundred thirty-four".