42252784 has 20 divisors (see below), whose sum is σ = 93559984. Its totient is φ = 18108288.

The previous prime is 42252781. The next prime is 42252787. The reversal of 42252784 is 48725224.

It is an interprime number because it is at equal distance from previous prime (42252781) and next prime (42252787).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188517 + ... + 188740.

Almost surely, 2^42252784 is an apocalyptic number.

It is an amenable number.

42252784 is an abundant number, since it is smaller than the sum of its proper divisors (51307200).

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

42252784 is a wasteful number, since it uses less digits than its factorization.

42252784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377272 (or 377266 counting only the distinct ones).

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

The square root of 42252784 is about 6500.2141503184. The cubic root of 42252784 is about 348.2986382625.

The spelling of 42252784 in words is "forty-two million, two hundred fifty-two thousand, seven hundred eighty-four".