28444068 has 48 divisors (see below), whose sum is σ = 74488960. Its totient is φ = 9385632.

The previous prime is 28444057. The next prime is 28444103. The reversal of 28444068 is 86044482.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 9846 + ... + 12402.

Almost surely, 2^28444068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28444068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37244480).

28444068 is an abundant number, since it is smaller than the sum of its proper divisors (46044892).

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

28444068 is a wasteful number, since it uses less digits than its factorization.

28444068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 28444068 is about 5333.2980415499. The cubic root of 28444068 is about 305.2557847125.

The spelling of 28444068 in words is "twenty-eight million, four hundred forty-four thousand, sixty-eight".