28365454 has 8 divisors (see below), whose sum is σ = 45821160. Its totient is φ = 13091736.

The previous prime is 28365437. The next prime is 28365473. The reversal of 28365454 is 45456382.

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

It is a super-2 number, since 2×28365454² = 1609197961252232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545464 + ... + 545515.

It is an arithmetic number, because the mean of its divisors is an integer number (5727645).

Almost surely, 2^28365454 is an apocalyptic number.

28365454 is a deficient number, since it is larger than the sum of its proper divisors (17455706).

28365454 is a wasteful number, since it uses less digits than its factorization.

28365454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090994.

The product of its digits is 115200, while the sum is 37.

The square root of 28365454 is about 5325.9228308341. The cubic root of 28365454 is about 304.9743022334.

The spelling of 28365454 in words is "twenty-eight million, three hundred sixty-five thousand, four hundred fifty-four".