42725924 has 6 divisors (see below), whose sum is σ = 74770374. Its totient is φ = 21362960.

The previous prime is 42725911. The next prime is 42725933. The reversal of 42725924 is 42952724.

It can be written as a sum of positive squares in only one way, i.e., 30052324 + 12673600 = 5482^2 + 3560^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5340737 + ... + 5340744.

It is an arithmetic number, because the mean of its divisors is an integer number (12461729).

Almost surely, 2^42725924 is an apocalyptic number.

It is an amenable number.

42725924 is a deficient number, since it is larger than the sum of its proper divisors (32044450).

42725924 is a wasteful number, since it uses less digits than its factorization.

42725924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681485 (or 10681483 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 42725924 is about 6536.5070182782. The cubic root of 42725924 is about 349.5938799641.

The spelling of 42725924 in words is "forty-two million, seven hundred twenty-five thousand, nine hundred twenty-four".