28645626 has 32 divisors (see below), whose sum is σ = 60092928. Its totient is φ = 9086000.

The previous prime is 28645619. The next prime is 28645627. The reversal of 28645626 is 62654682.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28645627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34225 + ... + 35051.

It is an arithmetic number, because the mean of its divisors is an integer number (1877904).

Almost surely, 2^28645626 is an apocalyptic number.

28645626 is an abundant number, since it is smaller than the sum of its proper divisors (31447302).

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

28645626 is a wasteful number, since it uses less digits than its factorization.

28645626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its digits is 138240, while the sum is 39.

The square root of 28645626 is about 5352.1608720217. The cubic root of 28645626 is about 305.9751143844.

The spelling of 28645626 in words is "twenty-eight million, six hundred forty-five thousand, six hundred twenty-six".