42651228 has 24 divisors (see below), whose sum is σ = 102952080. Its totient is φ = 13726720.

The previous prime is 42651211. The next prime is 42651229. The reversal of 42651228 is 82215624.

42651228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42651195 and 42651204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60933 + ... + 61628.

It is an arithmetic number, because the mean of its divisors is an integer number (4289670).

Almost surely, 2^42651228 is an apocalyptic number.

It is an amenable number.

42651228 is an abundant number, since it is smaller than the sum of its proper divisors (60300852).

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

42651228 is a wasteful number, since it uses less digits than its factorization.

42651228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122597 (or 122595 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 42651228 is about 6530.7907637590. The cubic root of 42651228 is about 349.3900341925.

The spelling of 42651228 in words is "forty-two million, six hundred fifty-one thousand, two hundred twenty-eight".