42718572 has 72 divisors (see below), whose sum is σ = 119480816. Its totient is φ = 12783744.

The previous prime is 42718561. The next prime is 42718579. The reversal of 42718572 is 27581724.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42718579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16083 + ... + 18549.

Almost surely, 2^42718572 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 42718572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59740408).

42718572 is an abundant number, since it is smaller than the sum of its proper divisors (76762244).

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

42718572 is a wasteful number, since it uses less digits than its factorization.

42718572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527 (or 2522 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42718572 is about 6535.9446142084. The cubic root of 42718572 is about 349.5738268644.

The spelling of 42718572 in words is "forty-two million, seven hundred eighteen thousand, five hundred seventy-two".