28251734 has 12 divisors (see below), whose sum is σ = 49296564. Its totient is φ = 12107844.

The previous prime is 28251733. The next prime is 28251781. The reversal of 28251734 is 43715282.

It is a self number, because there is not a number n which added to its sum of digits gives 28251734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28251733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144044 + ... + 144239.

It is an arithmetic number, because the mean of its divisors is an integer number (4108047).

Almost surely, 2^28251734 is an apocalyptic number.

28251734 is a deficient number, since it is larger than the sum of its proper divisors (21044830).

28251734 is a wasteful number, since it uses less digits than its factorization.

28251734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288299 (or 288292 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 28251734 is about 5315.2360248629. The cubic root of 28251734 is about 304.5661986693.

The spelling of 28251734 in words is "twenty-eight million, two hundred fifty-one thousand, seven hundred thirty-four".