42725284 has 24 divisors (see below), whose sum is σ = 90478080. Its totient is φ = 17233536.

The previous prime is 42725279. The next prime is 42725317. The reversal of 42725284 is 48252724.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 44404 + ... + 45355.

It is an arithmetic number, because the mean of its divisors is an integer number (3769920).

Almost surely, 2^42725284 is an apocalyptic number.

It is an amenable number.

42725284 is an abundant number, since it is smaller than the sum of its proper divisors (47752796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42725284 is a wasteful number, since it uses less digits than its factorization.

42725284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89787 (or 89785 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 42725284 is about 6536.4580622842. The cubic root of 42725284 is about 349.5921344103.

The spelling of 42725284 in words is "forty-two million, seven hundred twenty-five thousand, two hundred eighty-four".