42207928 has 32 divisors (see below), whose sum is σ = 92158560. Its totient is φ = 17746560.

The previous prime is 42207899. The next prime is 42207929. The reversal of 42207928 is 82970224.

It is a junction number, because it is equal to n+sod(n) for n = 42207893 and 42207902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42207929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4143 + ... + 10078.

It is an arithmetic number, because the mean of its divisors is an integer number (2879955).

Almost surely, 2^42207928 is an apocalyptic number.

It is an amenable number.

42207928 is an abundant number, since it is smaller than the sum of its proper divisors (49950632).

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

42207928 is a wasteful number, since it uses less digits than its factorization.

42207928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287 (or 14283 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42207928 is about 6496.7628862380. The cubic root of 42207928 is about 348.1753421219.

The spelling of 42207928 in words is "forty-two million, two hundred seven thousand, nine hundred twenty-eight".