42272457 has 8 divisors (see below), whose sum is σ = 56650176. Its totient is φ = 28038192.

The previous prime is 42272453. The next prime is 42272467. The reversal of 42272457 is 75427224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42272457 - 2² = 42272453 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 35173 + ... + 36354.

It is an arithmetic number, because the mean of its divisors is an integer number (7081272).

Almost surely, 2^42272457 is an apocalyptic number.

It is an amenable number.

42272457 is a deficient number, since it is larger than the sum of its proper divisors (14377719).

42272457 is a wasteful number, since it uses less digits than its factorization.

42272457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71727.

The product of its digits is 31360, while the sum is 33.

The square root of 42272457 is about 6501.7272320515. The cubic root of 42272457 is about 348.3526861089.

The spelling of 42272457 in words is "forty-two million, two hundred seventy-two thousand, four hundred fifty-seven".