26646672 has 40 divisors (see below), whose sum is σ = 74134144. Its totient is φ = 8198784.

The previous prime is 26646661. The next prime is 26646677. The reversal of 26646672 is 27664662.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 26646672.

It is not an unprimeable number, because it can be changed into a prime (26646677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20728 + ... + 21975.

Almost surely, 2^26646672 is an apocalyptic number.

It is an amenable number.

26646672 is an abundant number, since it is smaller than the sum of its proper divisors (47487472).

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

26646672 is a wasteful number, since it uses less digits than its factorization.

26646672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42727 (or 42721 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 26646672 is about 5162.0414566332. The cubic root of 26646672 is about 298.6856276050.

The spelling of 26646672 in words is "twenty-six million, six hundred forty-six thousand, six hundred seventy-two".