28234764 has 24 divisors (see below), whose sum is σ = 73201520. Its totient is φ = 9411552.

The previous prime is 28234763. The next prime is 28234793. The reversal of 28234764 is 46743282.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28234763) 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, 130609 + ... + 130824.

Almost surely, 2^28234764 is an apocalyptic number.

It is an amenable number.

28234764 is an abundant number, since it is smaller than the sum of its proper divisors (44966756).

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

28234764 is a wasteful number, since it uses less digits than its factorization.

28234764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261446 (or 261438 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28234764 is about 5313.6394307480. The cubic root of 28234764 is about 304.5052050847.

The spelling of 28234764 in words is "twenty-eight million, two hundred thirty-four thousand, seven hundred sixty-four".