28376880 has 240 divisors, whose sum is σ = 108564480. Its totient is φ = 6096384.

The previous prime is 28376839. The next prime is 28376897. The reversal of 28376880 is 8867382.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223377 + ... + 223503.

It is an arithmetic number, because the mean of its divisors is an integer number (452352).

Almost surely, 2^28376880 is an apocalyptic number.

28376880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28376880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54282240).

28376880 is an abundant number, since it is smaller than the sum of its proper divisors (80187600).

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

28376880 is a wasteful number, since it uses less digits than its factorization.

28376880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 28376880 is about 5326.9954007865. The cubic root of 28376880 is about 305.0152460353.

The spelling of 28376880 in words is "twenty-eight million, three hundred seventy-six thousand, eight hundred eighty".