28294149 has 12 divisors (see below), whose sum is σ = 40851456. Its totient is φ = 17411472.

The previous prime is 28294127. The next prime is 28294153. The reversal of 28294149 is 94149282.

It is not a de Polignac number, because 28294149 - 2¹¹ = 28292101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28294109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27397 + ... + 28410.

It is an arithmetic number, because the mean of its divisors is an integer number (3404288).

Almost surely, 2^28294149 is an apocalyptic number.

It is an amenable number.

28294149 is a deficient number, since it is larger than the sum of its proper divisors (12557307).

28294149 is a wasteful number, since it uses less digits than its factorization.

28294149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55836 (or 55823 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 28294149 is about 5319.2244735488. The cubic root of 28294149 is about 304.7185399488.

The spelling of 28294149 in words is "twenty-eight million, two hundred ninety-four thousand, one hundred forty-nine".