26249380 has 24 divisors (see below), whose sum is σ = 55634040. Its totient is φ = 10402560.

The previous prime is 26249323. The next prime is 26249381. The reversal of 26249380 is 8394262.

It can be written as a sum of positive squares in 4 ways, for example, as 5837056 + 20412324 = 2416^2 + 4518^2 .

It is not an unprimeable number, because it can be changed into a prime (26249381) 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, 3841 + ... + 8200.

It is an arithmetic number, because the mean of its divisors is an integer number (2318085).

Almost surely, 2^26249380 is an apocalyptic number.

26249380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26249380 is an abundant number, since it is smaller than the sum of its proper divisors (29384660).

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

26249380 is a wasteful number, since it uses less digits than its factorization.

26249380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12159 (or 12157 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 26249380 is about 5123.4148768180. The cubic root of 26249380 is about 297.1937577901.

The spelling of 26249380 in words is "twenty-six million, two hundred forty-nine thousand, three hundred eighty".