26946690 has 16 divisors (see below), whose sum is σ = 64672128. Its totient is φ = 7185776.

The previous prime is 26946677. The next prime is 26946691. The reversal of 26946690 is 9664962.

It is a super-2 number, since 2×26946690² = 1452248203912200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26946691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449082 + ... + 449141.

It is an arithmetic number, because the mean of its divisors is an integer number (4042008).

Almost surely, 2^26946690 is an apocalyptic number.

26946690 is an abundant number, since it is smaller than the sum of its proper divisors (37725438).

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

26946690 is a wasteful number, since it uses less digits than its factorization.

26946690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898233.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 26946690 is about 5191.0201309569. The cubic root of 26946690 is about 299.8024254651.

The spelling of 26946690 in words is "twenty-six million, nine hundred forty-six thousand, six hundred ninety".