28503374 has 8 divisors (see below), whose sum is σ = 42845760. Its totient is φ = 14221456.

The previous prime is 28503331. The next prime is 28503383. The reversal of 28503374 is 47330582.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28503374.

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, 13919 + ... + 15834.

It is an arithmetic number, because the mean of its divisors is an integer number (5355720).

Almost surely, 2^28503374 is an apocalyptic number.

28503374 is a deficient number, since it is larger than the sum of its proper divisors (14342386).

28503374 is a wasteful number, since it uses less digits than its factorization.

28503374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30234.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 28503374 is about 5338.8551207164. The cubic root of 28503374 is about 305.4677906296.

The spelling of 28503374 in words is "twenty-eight million, five hundred three thousand, three hundred seventy-four".