28672494 has 16 divisors (see below), whose sum is σ = 57784320. Its totient is φ = 9484280.

The previous prime is 28672477. The next prime is 28672499. The reversal of 28672494 is 49427682.

It is a super-2 number, since 2×28672494² = 1644223824360072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28672499) 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, 17454 + ... + 19025.

It is an arithmetic number, because the mean of its divisors is an integer number (3611520).

Almost surely, 2^28672494 is an apocalyptic number.

28672494 is an abundant number, since it is smaller than the sum of its proper divisors (29111826).

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

28672494 is a wasteful number, since it uses less digits than its factorization.

28672494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36615.

The product of its digits is 193536, while the sum is 42.

The square root of 28672494 is about 5354.6702979735. The cubic root of 28672494 is about 306.0707470237.

The spelling of 28672494 in words is "twenty-eight million, six hundred seventy-two thousand, four hundred ninety-four".