28413845 has 8 divisors (see below), whose sum is σ = 34577280. Its totient is φ = 22410640.

The previous prime is 28413799. The next prime is 28413857. The reversal of 28413845 is 54831482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28413845 - 2²⁰ = 27365269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39665 + ... + 40374.

It is an arithmetic number, because the mean of its divisors is an integer number (4322160).

Almost surely, 2^28413845 is an apocalyptic number.

It is an amenable number.

28413845 is a deficient number, since it is larger than the sum of its proper divisors (6163435).

28413845 is an equidigital number, since it uses as much as digits as its factorization.

28413845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80115.

The product of its digits is 30720, while the sum is 35.

The square root of 28413845 is about 5330.4638634926. The cubic root of 28413845 is about 305.1476307606.

It can be divided in two parts, 28413 and 845, that multiplied together give a triangular number (24008985 = T₆₉₂₉).

The spelling of 28413845 in words is "twenty-eight million, four hundred thirteen thousand, eight hundred forty-five".