28794130 has 16 divisors (see below), whose sum is σ = 51940440. Its totient is φ = 11492992.

The previous prime is 28794109. The next prime is 28794131. The reversal of 28794130 is 3149782.

It can be written as a sum of positive squares in 4 ways, for example, as 21520321 + 7273809 = 4639^2 + 2697^2 .

It is not an unprimeable number, because it can be changed into a prime (28794131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262 + ... + 7918.

Almost surely, 2^28794130 is an apocalyptic number.

28794130 is a deficient number, since it is larger than the sum of its proper divisors (23146310).

28794130 is a wasteful number, since it uses less digits than its factorization.

28794130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28794130 is about 5366.0162131697. The cubic root of 28794130 is about 306.5029463740.

The spelling of 28794130 in words is "twenty-eight million, seven hundred ninety-four thousand, one hundred thirty".