28759430 has 32 divisors (see below), whose sum is σ = 61737984. Its totient is φ = 9431136.

The previous prime is 28759429. The next prime is 28759457. The reversal of 28759430 is 3495782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7322 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (1929312).

Almost surely, 2^28759430 is an apocalyptic number.

28759430 is an abundant number, since it is smaller than the sum of its proper divisors (32978554).

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

28759430 is a wasteful number, since it uses less digits than its factorization.

28759430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17900.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 28759430 is about 5362.7819273209. The cubic root of 28759430 is about 306.3797739605.

The spelling of 28759430 in words is "twenty-eight million, seven hundred fifty-nine thousand, four hundred thirty".