42979573 has 24 divisors (see below), whose sum is σ = 54390528. Its totient is φ = 33239232.

The previous prime is 42979567. The next prime is 42979589. The reversal of 42979573 is 37597924.

It is not a de Polignac number, because 42979573 - 2¹³ = 42971381 is a prime.

It is a Duffinian number.

Its product of digits (476280) is a multiple of the sum of its prime divisors (840).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42979523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55215 + ... + 55987.

It is an arithmetic number, because the mean of its divisors is an integer number (2266272).

Almost surely, 2^42979573 is an apocalyptic number.

It is an amenable number.

42979573 is a deficient number, since it is larger than the sum of its proper divisors (11410955).

42979573 is a wasteful number, since it uses less digits than its factorization.

42979573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 840 counting only the distinct ones).

The product of its digits is 476280, while the sum is 46.

The square root of 42979573 is about 6555.8807951335. The cubic root of 42979573 is about 350.2843213509.

The spelling of 42979573 in words is "forty-two million, nine hundred seventy-nine thousand, five hundred seventy-three".