26439340 has 24 divisors (see below), whose sum is σ = 55621440. Its totient is φ = 10556928.

The previous prime is 26439331. The next prime is 26439353. The reversal of 26439340 is 4393462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17869 + ... + 19291.

It is an arithmetic number, because the mean of its divisors is an integer number (2317560).

Almost surely, 2^26439340 is an apocalyptic number.

26439340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26439340 is an abundant number, since it is smaller than the sum of its proper divisors (29182100).

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

26439340 is a wasteful number, since it uses less digits than its factorization.

26439340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2359 counting only the distinct ones).

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

The square root of 26439340 is about 5141.9198749105. The cubic root of 26439340 is about 297.9089402422.

The spelling of 26439340 in words is "twenty-six million, four hundred thirty-nine thousand, three hundred forty".