42572388 has 48 divisors (see below), whose sum is σ = 106312640. Its totient is φ = 13219200.

The previous prime is 42572357. The next prime is 42572417. The reversal of 42572388 is 88327524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12378 + ... + 15438.

Almost surely, 2^42572388 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 42572388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53156320).

42572388 is an abundant number, since it is smaller than the sum of its proper divisors (63740252).

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

42572388 is a wasteful number, since it uses less digits than its factorization.

42572388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 3146 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 42572388 is about 6524.7519493081. The cubic root of 42572388 is about 349.1746210869.

The spelling of 42572388 in words is "forty-two million, five hundred seventy-two thousand, three hundred eighty-eight".