28996600 has 24 divisors (see below), whose sum is σ = 67417560. Its totient is φ = 11598560.

The previous prime is 28996589. The next prime is 28996601. The reversal of 28996600 is 669982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28996601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72292 + ... + 72691.

It is an arithmetic number, because the mean of its divisors is an integer number (2809065).

Almost surely, 2^28996600 is an apocalyptic number.

28996600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28996600 is an abundant number, since it is smaller than the sum of its proper divisors (38420960).

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

28996600 is a wasteful number, since it uses less digits than its factorization.

28996600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144999 (or 144990 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 28996600 is about 5384.8491158063. The cubic root of 28996600 is about 307.2196753439.

The spelling of 28996600 in words is "twenty-eight million, nine hundred ninety-six thousand, six hundred".