28901044 has 12 divisors (see below), whose sum is σ = 51217600. Its totient is φ = 14267448.

The previous prime is 28901029. The next prime is 28901057. The reversal of 28901044 is 44010982.

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, 45414 + ... + 46045.

Almost surely, 2^28901044 is an apocalyptic number.

It is an amenable number.

28901044 is a deficient number, since it is larger than the sum of its proper divisors (22316556).

28901044 is a wasteful number, since it uses less digits than its factorization.

28901044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91542 (or 91540 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28901044 is about 5375.9691219351. The cubic root of 28901044 is about 306.8818312518.

The spelling of 28901044 in words is "twenty-eight million, nine hundred one thousand, forty-four".