28694044 has 12 divisors (see below), whose sum is σ = 50333584. Its totient is φ = 14313024.

The previous prime is 28694027. The next prime is 28694051. The reversal of 28694044 is 44049682.

It is a super-2 number, since 2×28694044² = 1646696322147872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28693994 and 28694012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552 + ... + 10015.

Almost surely, 2^28694044 is an apocalyptic number.

It is an amenable number.

28694044 is a deficient number, since it is larger than the sum of its proper divisors (21639540).

28694044 is a wasteful number, since it uses less digits than its factorization.

28694044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17004 (or 17002 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 28694044 is about 5356.6821820974. The cubic root of 28694044 is about 306.1474078684.

The spelling of 28694044 in words is "twenty-eight million, six hundred ninety-four thousand, forty-four".