28590378 has 8 divisors (see below), whose sum is σ = 57180768. Its totient is φ = 9530124.

The previous prime is 28590361. The next prime is 28590389. The reversal of 28590378 is 87309582.

It is a sphenic number, since it is the product of 3 distinct primes.

28590378 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2382526 + ... + 2382537.

It is an arithmetic number, because the mean of its divisors is an integer number (7147596).

Almost surely, 2^28590378 is an apocalyptic number.

28590378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28590378 is a wasteful number, since it uses less digits than its factorization.

28590378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765068.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 28590378 is about 5346.9971011774. The cubic root of 28590378 is about 305.7782793013.

The spelling of 28590378 in words is "twenty-eight million, five hundred ninety thousand, three hundred seventy-eight".