42966784 has 36 divisors (see below), whose sum is σ = 98022064. Its totient is φ = 18413568.

The previous prime is 42966773. The next prime is 42966793. The reversal of 42966784 is 48766924.

It is a happy number.

It is a super-2 number, since 2×42966784² = 3692289054605312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10197 + ... + 13780.

Almost surely, 2^42966784 is an apocalyptic number.

It is an amenable number.

42966784 is an abundant number, since it is smaller than the sum of its proper divisors (55055280).

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

42966784 is an equidigital number, since it uses as much as digits as its factorization.

42966784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24000 (or 23986 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 42966784 is about 6554.9053387520. The cubic root of 42966784 is about 350.2495743747.

The spelling of 42966784 in words is "forty-two million, nine hundred sixty-six thousand, seven hundred eighty-four".