42368784 has 40 divisors (see below), whose sum is σ = 115215840. Its totient is φ = 13379328.

The previous prime is 42368749. The next prime is 42368791. The reversal of 42368784 is 48786324.

It is a super-2 number, since 2×42368784² = 3590227715277312, which contains 22 as substring.

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, 22317 + ... + 24140.

It is an arithmetic number, because the mean of its divisors is an integer number (2880396).

Almost surely, 2^42368784 is an apocalyptic number.

It is an amenable number.

42368784 is an abundant number, since it is smaller than the sum of its proper divisors (72847056).

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

42368784 is a wasteful number, since it uses less digits than its factorization.

42368784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46487 (or 46481 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 42368784 is about 6509.1308175516. The cubic root of 42368784 is about 348.6170845356.

The spelling of 42368784 in words is "forty-two million, three hundred sixty-eight thousand, seven hundred eighty-four".