26279964 has 72 divisors (see below), whose sum is σ = 72567040. Its totient is φ = 8293104.

The previous prime is 26279947. The next prime is 26279987. The reversal of 26279964 is 46997262.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17757 + ... + 19179.

Almost surely, 2^26279964 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 26279964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36283520).

26279964 is an abundant number, since it is smaller than the sum of its proper divisors (46287076).

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

26279964 is a wasteful number, since it uses less digits than its factorization.

26279964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1447 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 26279964 is about 5126.3987359549. The cubic root of 26279964 is about 297.3091363383.

The spelling of 26279964 in words is "twenty-six million, two hundred seventy-nine thousand, nine hundred sixty-four".