42724670 has 16 divisors (see below), whose sum is σ = 77114160. Its totient is φ = 17043264.

The previous prime is 42724667. The next prime is 42724679. The reversal of 42724670 is 7642724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42724679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847 + ... + 9426.

It is an arithmetic number, because the mean of its divisors is an integer number (4819635).

Almost surely, 2^42724670 is an apocalyptic number.

42724670 is a deficient number, since it is larger than the sum of its proper divisors (34389490).

42724670 is a wasteful number, since it uses less digits than its factorization.

42724670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11659.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42724670 is about 6536.4110947828. The cubic root of 42724670 is about 349.5904597532.

The spelling of 42724670 in words is "forty-two million, seven hundred twenty-four thousand, six hundred seventy".