28998744 has 32 divisors (see below), whose sum is σ = 72681840. Its totient is φ = 9641600.

The previous prime is 28998737. The next prime is 28998751. The reversal of 28998744 is 44789982.

It is an interprime number because it is at equal distance from previous prime (28998737) and next prime (28998751).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9754 + ... + 12374.

Almost surely, 2^28998744 is an apocalyptic number.

28998744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28998744 is an abundant number, since it is smaller than the sum of its proper divisors (43683096).

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

28998744 is a wasteful number, since it uses less digits than its factorization.

28998744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091 (or 3087 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 28998744 is about 5385.0481891994. The cubic root of 28998744 is about 307.2272470678.

The spelling of 28998744 in words is "twenty-eight million, nine hundred ninety-eight thousand, seven hundred forty-four".