42228036 has 18 divisors (see below), whose sum is σ = 106743182. Its totient is φ = 14076000.

The previous prime is 42228029. The next prime is 42228041. The reversal of 42228036 is 63082224.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 11492100 = 5544^2 + 3390^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586465 + ... + 586536.

Almost surely, 2^42228036 is an apocalyptic number.

It is an amenable number.

42228036 is an abundant number, since it is smaller than the sum of its proper divisors (64515146).

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

42228036 is a wasteful number, since it uses less digits than its factorization.

42228036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173011 (or 1173006 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42228036 is about 6498.3102419014. The cubic root of 42228036 is about 348.2306239818.

The spelling of 42228036 in words is "forty-two million, two hundred twenty-eight thousand, thirty-six".