28443626 has 4 divisors (see below), whose sum is σ = 42665442. Its totient is φ = 14221812.

The previous prime is 28443593. The next prime is 28443643. The reversal of 28443626 is 62634482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16200625 + 12243001 = 4025^2 + 3499^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110905 + ... + 7110908.

Almost surely, 2^28443626 is an apocalyptic number.

28443626 is a deficient number, since it is larger than the sum of its proper divisors (14221816).

28443626 is a wasteful number, since it uses less digits than its factorization.

28443626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14221815.

The product of its digits is 55296, while the sum is 35.

The square root of 28443626 is about 5333.2566036147. The cubic root of 28443626 is about 305.2542035538.

The spelling of 28443626 in words is "twenty-eight million, four hundred forty-three thousand, six hundred twenty-six".