26981262 has 144 divisors (see below), whose sum is σ = 77680512. Its totient is φ = 6940080.

The previous prime is 26981257. The next prime is 26981263. The reversal of 26981262 is 26218962.

It is a happy number.

It is a super-2 number, since 2×26981262² = 1455976998225288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26981263) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 261903 + ... + 262005.

It is an arithmetic number, because the mean of its divisors is an integer number (539448).

Almost surely, 2^26981262 is an apocalyptic number.

26981262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26981262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38840256).

26981262 is an abundant number, since it is smaller than the sum of its proper divisors (50699250).

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

26981262 is a wasteful number, since it uses less digits than its factorization.

26981262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 126 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 26981262 is about 5194.3490448756. The cubic root of 26981262 is about 299.9305839393.

The spelling of 26981262 in words is "twenty-six million, nine hundred eighty-one thousand, two hundred sixty-two".