42812272 has 20 divisors (see below), whose sum is σ = 83050240. Its totient is φ = 21379968.

The previous prime is 42812261. The next prime is 42812279. The reversal of 42812272 is 27221824.

It is a self number, because there is not a number n which added to its sum of digits gives 42812272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24913 + ... + 26575.

It is an arithmetic number, because the mean of its divisors is an integer number (4152512).

Almost surely, 2^42812272 is an apocalyptic number.

It is an amenable number.

42812272 is a deficient number, since it is larger than the sum of its proper divisors (40237968).

42812272 is a wasteful number, since it uses less digits than its factorization.

42812272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280 (or 3274 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 42812272 is about 6543.1087412636. The cubic root of 42812272 is about 349.8292282554.

The spelling of 42812272 in words is "forty-two million, eight hundred twelve thousand, two hundred seventy-two".