28376380 has 24 divisors (see below), whose sum is σ = 60208848. Its totient is φ = 11232768.

The previous prime is 28376339. The next prime is 28376389. The reversal of 28376380 is 8367382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28376389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5374 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (2508702).

Almost surely, 2^28376380 is an apocalyptic number.

28376380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28376380 is an abundant number, since it is smaller than the sum of its proper divisors (31832468).

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

28376380 is a wasteful number, since it uses less digits than its factorization.

28376380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14733 (or 14731 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28376380 is about 5326.9484698090. The cubic root of 28376380 is about 305.0134545708.

The spelling of 28376380 in words is "twenty-eight million, three hundred seventy-six thousand, three hundred eighty".