42758272 has 16 divisors (see below), whose sum is σ = 85182750. Its totient is φ = 21379072.

The previous prime is 42758239. The next prime is 42758293. The reversal of 42758272 is 27285724.

It can be written as a sum of positive squares in only one way, i.e., 31629376 + 11128896 = 5624^2 + 3336^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166897 + ... + 167152.

Almost surely, 2^42758272 is an apocalyptic number.

It is an amenable number.

42758272 is a deficient number, since it is larger than the sum of its proper divisors (42424478).

42758272 is an equidigital number, since it uses as much as digits as its factorization.

42758272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334063 (or 334051 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 42758272 is about 6538.9809603638. The cubic root of 42758272 is about 349.6820841036.

The spelling of 42758272 in words is "forty-two million, seven hundred fifty-eight thousand, two hundred seventy-two".