28377800 has 48 divisors (see below), whose sum is σ = 71982000. Its totient is φ = 10318400.

The previous prime is 28377799. The next prime is 28377829. The reversal of 28377800 is 877382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4250 + ... + 8649.

It is an arithmetic number, because the mean of its divisors is an integer number (1499625).

Almost surely, 2^28377800 is an apocalyptic number.

28377800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28377800 is an abundant number, since it is smaller than the sum of its proper divisors (43604200).

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

28377800 is a wasteful number, since it uses less digits than its factorization.

28377800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12926 (or 12917 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 28377800 is about 5327.0817527048. The cubic root of 28377800 is about 305.0185422750.

The spelling of 28377800 in words is "twenty-eight million, three hundred seventy-seven thousand, eight hundred".