28699044 has 48 divisors (see below), whose sum is σ = 76903680. Its totient is φ = 8238240.

The previous prime is 28699007. The next prime is 28699061. The reversal of 28699044 is 44099682.

It is a junction number, because it is equal to n+sod(n) for n = 28698987 and 28699005.

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, 3214 + ... + 8229.

It is an arithmetic number, because the mean of its divisors is an integer number (1602160).

Almost surely, 2^28699044 is an apocalyptic number.

It is an amenable number.

28699044 is an abundant number, since it is smaller than the sum of its proper divisors (48204636).

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

28699044 is a wasteful number, since it uses less digits than its factorization.

28699044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480 (or 11478 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 28699044 is about 5357.1488685681. The cubic root of 28699044 is about 306.1651891211.

The spelling of 28699044 in words is "twenty-eight million, six hundred ninety-nine thousand, forty-four".