42556794 has 24 divisors (see below), whose sum is σ = 99010368. Its totient is φ = 12159000.

The previous prime is 42556781. The next prime is 42556823. The reversal of 42556794 is 49765524.

It is a super-2 number, since 2×42556794² = 3622161431116872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72082 + ... + 72669.

It is an arithmetic number, because the mean of its divisors is an integer number (4125432).

Almost surely, 2^42556794 is an apocalyptic number.

42556794 is an abundant number, since it is smaller than the sum of its proper divisors (56453574).

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

42556794 is a wasteful number, since it uses less digits than its factorization.

42556794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144770 (or 144763 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 42556794 is about 6523.5568519022. The cubic root of 42556794 is about 349.1319823856.

The spelling of 42556794 in words is "forty-two million, five hundred fifty-six thousand, seven hundred ninety-four".