28943454 has 8 divisors (see below), whose sum is σ = 57886920. Its totient is φ = 9647816.

The previous prime is 28943449. The next prime is 28943471. The reversal of 28943454 is 45434982.

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

28943454 is an admirable number.

It is a Curzon number.

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, 2411949 + ... + 2411960.

It is an arithmetic number, because the mean of its divisors is an integer number (7235865).

Almost surely, 2^28943454 is an apocalyptic number.

28943454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28943454 is a wasteful number, since it uses less digits than its factorization.

28943454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823914.

The product of its digits is 138240, while the sum is 39.

The square root of 28943454 is about 5379.9120810660. The cubic root of 28943454 is about 307.0318661727.

The spelling of 28943454 in words is "twenty-eight million, nine hundred forty-three thousand, four hundred fifty-four".