26861290 has 16 divisors (see below), whose sum is σ = 48934368. Its totient is φ = 10614736.

The previous prime is 26861281. The next prime is 26861311. The reversal of 26861290 is 9216862.

It is a happy number.

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, 15352 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (3058398).

Almost surely, 2^26861290 is an apocalyptic number.

26861290 is a deficient number, since it is larger than the sum of its proper divisors (22073078).

26861290 is a wasteful number, since it uses less digits than its factorization.

26861290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32453.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 26861290 is about 5182.7878598299. The cubic root of 26861290 is about 299.4853769745.

The spelling of 26861290 in words is "twenty-six million, eight hundred sixty-one thousand, two hundred ninety".