26644416 has 56 divisors (see below), whose sum is σ = 71499984. Its totient is φ = 8755200.

The previous prime is 26644399. The next prime is 26644421. The reversal of 26644416 is 61444662.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13066 + ... + 14966.

Almost surely, 2^26644416 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 26644416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35749992).

26644416 is an abundant number, since it is smaller than the sum of its proper divisors (44855568).

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

26644416 is a wasteful number, since it uses less digits than its factorization.

26644416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1979 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 26644416 is about 5161.8229338093. The cubic root of 26644416 is about 298.6771981122.

The spelling of 26644416 in words is "twenty-six million, six hundred forty-four thousand, four hundred sixteen".