28944992 has 12 divisors (see below), whose sum is σ = 56985516. Its totient is φ = 14472480.

The previous prime is 28944983. The next prime is 28945001. The reversal of 28944992 is 29944982.

It is an interprime number because it is at equal distance from previous prime (28944983) and next prime (28945001).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452234 + ... + 452297.

It is an arithmetic number, because the mean of its divisors is an integer number (4748793).

Almost surely, 2^28944992 is an apocalyptic number.

It is an amenable number.

28944992 is a deficient number, since it is larger than the sum of its proper divisors (28040524).

28944992 is an equidigital number, since it uses as much as digits as its factorization.

28944992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904541 (or 904533 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 28944992 is about 5380.0550183060. The cubic root of 28944992 is about 307.0373044392.

The spelling of 28944992 in words is "twenty-eight million, nine hundred forty-four thousand, nine hundred ninety-two".