28271454 has 16 divisors (see below), whose sum is σ = 57387648. Its totient is φ = 9283032.

The previous prime is 28271447. The next prime is 28271471. The reversal of 28271454 is 45417282.

It is a super-2 number, since 2×28271454² = 1598550222548232, 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 7 ways as a sum of consecutive naturals, for example, 34762 + ... + 35565.

It is an arithmetic number, because the mean of its divisors is an integer number (3586728).

Almost surely, 2^28271454 is an apocalyptic number.

28271454 is an abundant number, since it is smaller than the sum of its proper divisors (29116194).

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

28271454 is a wasteful number, since it uses less digits than its factorization.

28271454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70399.

The product of its digits is 17920, while the sum is 33.

The square root of 28271454 is about 5317.0907458873. The cubic root of 28271454 is about 304.6370456311.

The spelling of 28271454 in words is "twenty-eight million, two hundred seventy-one thousand, four hundred fifty-four".