42772828 has 24 divisors (see below), whose sum is σ = 85685600. Its totient is φ = 18301248.

The previous prime is 42772823. The next prime is 42772843. The reversal of 42772828 is 82827724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29218 + ... + 30646.

Almost surely, 2^42772828 is an apocalyptic number.

It is an amenable number.

42772828 is an abundant number, since it is smaller than the sum of its proper divisors (42912772).

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

42772828 is a wasteful number, since it uses less digits than its factorization.

42772828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509 (or 2507 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 42772828 is about 6540.0938831182. The cubic root of 42772828 is about 349.7217598179.

The spelling of 42772828 in words is "forty-two million, seven hundred seventy-two thousand, eight hundred twenty-eight".