42272456 has 16 divisors (see below), whose sum is σ = 79490700. Its totient is φ = 21074944.

The previous prime is 42272453. The next prime is 42272467. The reversal of 42272456 is 65427224.

It can be written as a sum of positive squares in 2 ways, for example, as 35164900 + 7107556 = 5930^2 + 2666^2 .

It is not an unprimeable number, because it can be changed into a prime (42272453) 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, 4661 + ... + 10308.

Almost surely, 2^42272456 is an apocalyptic number.

It is an amenable number.

42272456 is a deficient number, since it is larger than the sum of its proper divisors (37218244).

42272456 is a wasteful number, since it uses less digits than its factorization.

42272456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328 (or 15324 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 42272456 is about 6501.7271551489. The cubic root of 42272456 is about 348.3526833620.

The spelling of 42272456 in words is "forty-two million, two hundred seventy-two thousand, four hundred fifty-six".