42772420 has 24 divisors (see below), whose sum is σ = 94550400. Its totient is φ = 16208352.

The previous prime is 42772399. The next prime is 42772423. The reversal of 42772420 is 2427724.

It is not an unprimeable number, because it can be changed into a prime (42772423) 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, 55900 + ... + 56659.

It is an arithmetic number, because the mean of its divisors is an integer number (3939600).

Almost surely, 2^42772420 is an apocalyptic number.

It is an amenable number.

42772420 is an abundant number, since it is smaller than the sum of its proper divisors (51777980).

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

42772420 is a wasteful number, since it uses less digits than its factorization.

42772420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112587 (or 112585 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 42772420 is about 6540.0626908310. The cubic root of 42772420 is about 349.7206478430.

The spelling of 42772420 in words is "forty-two million, seven hundred seventy-two thousand, four hundred twenty".