28417032 has 48 divisors (see below), whose sum is σ = 87959040. Its totient is φ = 8119008.

The previous prime is 28417031. The next prime is 28417043. The reversal of 28417032 is 23071482.

It is a junction number, because it is equal to n+sod(n) for n = 28416987 and 28417005.

It is not an unprimeable number, because it can be changed into a prime (28417031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27688 + ... + 28695.

It is an arithmetic number, because the mean of its divisors is an integer number (1832480).

Almost surely, 2^28417032 is an apocalyptic number.

It is an amenable number.

28417032 is an abundant number, since it is smaller than the sum of its proper divisors (59542008).

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

28417032 is a wasteful number, since it uses less digits than its factorization.

28417032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56402 (or 56395 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 28417032 is about 5330.7627971989. The cubic root of 28417032 is about 305.1590391560.

The spelling of 28417032 in words is "twenty-eight million, four hundred seventeen thousand, thirty-two".