26649012 has 24 divisors (see below), whose sum is σ = 66964576. Its totient is φ = 8199648.

The previous prime is 26649011. The next prime is 26649017. The reversal of 26649012 is 21094662.

It is a super-2 number, since 2×26649012² = 1420339681152288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26649011) 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, 85258 + ... + 85569.

Almost surely, 2^26649012 is an apocalyptic number.

It is an amenable number.

26649012 is an abundant number, since it is smaller than the sum of its proper divisors (40315564).

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

26649012 is a wasteful number, since it uses less digits than its factorization.

26649012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170847 (or 170845 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 26649012 is about 5162.2681061719. The cubic root of 26649012 is about 298.6943704593.

The spelling of 26649012 in words is "twenty-six million, six hundred forty-nine thousand, twelve".