42319228 has 24 divisors (see below), whose sum is σ = 86238432. Its totient is φ = 17793984.

The previous prime is 42319219. The next prime is 42319237. The reversal of 42319228 is 82291324.

It is an interprime number because it is at equal distance from previous prime (42319219) and next prime (42319237).

It is a self number, because there is not a number n which added to its sum of digits gives 42319228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12775 + ... + 15742.

It is an arithmetic number, because the mean of its divisors is an integer number (3593268).

Almost surely, 2^42319228 is an apocalyptic number.

It is an amenable number.

42319228 is an abundant number, since it is smaller than the sum of its proper divisors (43919204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42319228 is a wasteful number, since it uses less digits than its factorization.

42319228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28581 (or 28579 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 42319228 is about 6505.3230511636. The cubic root of 42319228 is about 348.4811132964.

The spelling of 42319228 in words is "forty-two million, three hundred nineteen thousand, two hundred twenty-eight".