42785472 has 28 divisors (see below), whose sum is σ = 113203736. Its totient is φ = 14261760.

The previous prime is 42785467. The next prime is 42785489. The reversal of 42785472 is 27458724.

It is a super-2 number, since 2×42785472² = 3661193228525568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42785472.

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 3 ways as a sum of consecutive naturals, for example, 111229 + ... + 111612.

Almost surely, 2^42785472 is an apocalyptic number.

It is an amenable number.

42785472 is an abundant number, since it is smaller than the sum of its proper divisors (70418264).

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

42785472 is a wasteful number, since it uses less digits than its factorization.

42785472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222856 (or 222846 counting only the distinct ones).

The product of its digits is 125440, while the sum is 39.

The square root of 42785472 is about 6541.0604644813. The cubic root of 42785472 is about 349.7562166330.

The spelling of 42785472 in words is "forty-two million, seven hundred eighty-five thousand, four hundred seventy-two".