28230076 has 18 divisors (see below), whose sum is σ = 57468768. Its totient is φ = 12098520.

The previous prime is 28230071. The next prime is 28230089. The reversal of 28230076 is 67003282.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28230071) 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, 71820 + ... + 72211.

Almost surely, 2^28230076 is an apocalyptic number.

It is an amenable number.

28230076 is an abundant number, since it is smaller than the sum of its proper divisors (29238692).

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

28230076 is a wasteful number, since it uses less digits than its factorization.

28230076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144049 (or 144040 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28230076 is about 5313.1982835200. The cubic root of 28230076 is about 304.4883511640.

It can be divided in two parts, 282300 and 76, that added together give a triangular number (282376 = T₇₅₁).

The spelling of 28230076 in words is "twenty-eight million, two hundred thirty thousand, seventy-six".