42915288 has 64 divisors (see below), whose sum is σ = 116202240. Its totient is φ = 13129344.

The previous prime is 42915251. The next prime is 42915329. The reversal of 42915288 is 88251924.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81795 + ... + 82317.

It is an arithmetic number, because the mean of its divisors is an integer number (1815660).

Almost surely, 2^42915288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42915288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58101120).

42915288 is an abundant number, since it is smaller than the sum of its proper divisors (73286952).

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

42915288 is a wasteful number, since it uses less digits than its factorization.

42915288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 804 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 42915288 is about 6550.9761104739. The cubic root of 42915288 is about 350.1095928913.

The spelling of 42915288 in words is "forty-two million, nine hundred fifteen thousand, two hundred eighty-eight".