28366494 has 32 divisors (see below), whose sum is σ = 62754720. Its totient is φ = 8491392.

The previous prime is 28366469. The next prime is 28366511. The reversal of 28366494 is 49466382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (1961085).

Almost surely, 2^28366494 is an apocalyptic number.

28366494 is an abundant number, since it is smaller than the sum of its proper divisors (34388226).

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

28366494 is a wasteful number, since it uses less digits than its factorization.

28366494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884.

The product of its digits is 248832, while the sum is 42.

The square root of 28366494 is about 5326.0204656009. The cubic root of 28366494 is about 304.9780294126.

The spelling of 28366494 in words is "twenty-eight million, three hundred sixty-six thousand, four hundred ninety-four".