26394340 has 72 divisors (see below), whose sum is σ = 67338432. Its totient is φ = 8648640.

The previous prime is 26394331. The next prime is 26394343. The reversal of 26394340 is 4349362.

It is a super-2 number, since 2×26394340² = 1393322368071200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26394343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21955 + ... + 23125.

It is an arithmetic number, because the mean of its divisors is an integer number (935256).

Almost surely, 2^26394340 is an apocalyptic number.

26394340 is a gapful number since it is divisible by the number (20) 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 26394340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33669216).

26394340 is an abundant number, since it is smaller than the sum of its proper divisors (40944092).

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

26394340 is a wasteful number, since it uses less digits than its factorization.

26394340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 26394340 is about 5137.5422139385. The cubic root of 26394340 is about 297.7398296774.

The spelling of 26394340 in words is "twenty-six million, three hundred ninety-four thousand, three hundred forty".