42772276 has 12 divisors (see below), whose sum is σ = 75174372. Its totient is φ = 21293888.

The previous prime is 42772273. The next prime is 42772309. The reversal of 42772276 is 67227724.

It can be written as a sum of positive squares in 2 ways, for example, as 8549776 + 34222500 = 2924^2 + 5850^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22015 + ... + 23878.

It is an arithmetic number, because the mean of its divisors is an integer number (6264531).

Almost surely, 2^42772276 is an apocalyptic number.

It is an amenable number.

42772276 is a deficient number, since it is larger than the sum of its proper divisors (32402096).

42772276 is a wasteful number, since it uses less digits than its factorization.

42772276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46130 (or 46128 counting only the distinct ones).

The product of its digits is 65856, while the sum is 37.

The square root of 42772276 is about 6540.0516817530. The cubic root of 42772276 is about 349.7202553796.

The spelling of 42772276 in words is "forty-two million, seven hundred seventy-two thousand, two hundred seventy-six".