17428872 has 32 divisors (see below), whose sum is σ = 43826400. Its totient is φ = 5775744.

The previous prime is 17428849. The next prime is 17428877. The reversal of 17428872 is 27882471.

It is a self number, because there is not a number n which added to its sum of digits gives 17428872.

It is not an unprimeable number, because it can be changed into a prime (17428877) 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, 2268 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (1369575).

Almost surely, 2^17428872 is an apocalyptic number.

17428872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17428872 is an abundant number, since it is smaller than the sum of its proper divisors (26397528).

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

17428872 is a wasteful number, since it uses less digits than its factorization.

17428872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245 (or 4241 counting only the distinct ones).

The product of its digits is 50176, while the sum is 39.

The square root of 17428872 is about 4174.7900546015. The cubic root of 17428872 is about 259.2724829677.

The spelling of 17428872 in words is "seventeen million, four hundred twenty-eight thousand, eight hundred seventy-two".