26668378 has 8 divisors (see below), whose sum is σ = 43639200. Its totient is φ = 12121980.

The previous prime is 26668373. The next prime is 26668387. The reversal of 26668378 is 87386662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×26668378² = 1422404770301768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26668373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606078 + ... + 606121.

It is an arithmetic number, because the mean of its divisors is an integer number (5454900).

Almost surely, 2^26668378 is an apocalyptic number.

26668378 is a deficient number, since it is larger than the sum of its proper divisors (16970822).

26668378 is a wasteful number, since it uses less digits than its factorization.

26668378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212212.

The product of its digits is 580608, while the sum is 46.

The square root of 26668378 is about 5164.1434914224. The cubic root of 26668378 is about 298.7667072815.

It can be divided in two parts, 266 and 68378, that added together give a square (68644 = 262²).

The spelling of 26668378 in words is "twenty-six million, six hundred sixty-eight thousand, three hundred seventy-eight".