28090376 has 8 divisors (see below), whose sum is σ = 52669470. Its totient is φ = 14045184.

The previous prime is 28090351. The next prime is 28090393. The reversal of 28090376 is 67309082.

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 106276 = 5290^2 + 326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755641 + ... + 1755656.

Almost surely, 2^28090376 is an apocalyptic number.

It is an amenable number.

28090376 is a deficient number, since it is larger than the sum of its proper divisors (24579094).

28090376 is a wasteful number, since it uses less digits than its factorization.

28090376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511303 (or 3511299 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28090376 is about 5300.0354715794. The cubic root of 28090376 is about 303.9852543633.

The spelling of 28090376 in words is "twenty-eight million, ninety thousand, three hundred seventy-six".