42979726 has 16 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 20864320.

The previous prime is 42979697. The next prime is 42979753. The reversal of 42979726 is 62797924.

It is a happy number.

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, 17460 + ... + 19768.

It is an arithmetic number, because the mean of its divisors is an integer number (4147605).

Almost surely, 2^42979726 is an apocalyptic number.

42979726 is a deficient number, since it is larger than the sum of its proper divisors (23381954).

42979726 is a wasteful number, since it uses less digits than its factorization.

42979726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579.

The product of its digits is 381024, while the sum is 46.

The square root of 42979726 is about 6555.8924640357. The cubic root of 42979726 is about 350.2847370014.

The spelling of 42979726 in words is "forty-two million, nine hundred seventy-nine thousand, seven hundred twenty-six".