26398372 has 96 divisors (see below), whose sum is σ = 65479680. Its totient is φ = 8968320.

The previous prime is 26398369. The next prime is 26398373. The reversal of 26398372 is 27389362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26398373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75903 + ... + 76249.

It is an arithmetic number, because the mean of its divisors is an integer number (682080).

Almost surely, 2^26398372 is an apocalyptic number.

26398372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26398372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32739840).

26398372 is an abundant number, since it is smaller than the sum of its proper divisors (39081308).

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

26398372 is a wasteful number, since it uses less digits than its factorization.

26398372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 26398372 is about 5137.9346044885. The cubic root of 26398372 is about 297.7549898199.

It can be divided in two parts, 2639 and 8372, that added together give a palindrome (11011).

The spelling of 26398372 in words is "twenty-six million, three hundred ninety-eight thousand, three hundred seventy-two".