28411290 has 32 divisors (see below), whose sum is σ = 75764160. Its totient is φ = 7576272.

The previous prime is 28411241. The next prime is 28411291. The reversal of 28411290 is 9211482.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (28411291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52344 + ... + 52883.

It is an arithmetic number, because the mean of its divisors is an integer number (2367630).

Almost surely, 2^28411290 is an apocalyptic number.

28411290 is an abundant number, since it is smaller than the sum of its proper divisors (47352870).

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

28411290 is a wasteful number, since it uses less digits than its factorization.

28411290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105243 (or 105237 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 28411290 is about 5330.2241979114. The cubic root of 28411290 is about 305.1384840979.

The spelling of 28411290 in words is "twenty-eight million, four hundred eleven thousand, two hundred ninety".