26672378 has 8 divisors (see below), whose sum is σ = 40032468. Its totient is φ = 13328224.

The previous prime is 26672377. The next prime is 26672389. The reversal of 26672378 is 87327662.

It can be written as a sum of positive squares in 2 ways, for example, as 17952169 + 8720209 = 4237^2 + 2953^2 .

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

It is a super-2 number, since 2×26672378² = 1422831496349768, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26672377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 7572.

Almost surely, 2^26672378 is an apocalyptic number.

26672378 is a deficient number, since it is larger than the sum of its proper divisors (13360090).

26672378 is a wasteful number, since it uses less digits than its factorization.

26672378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968.

The product of its digits is 169344, while the sum is 41.

The square root of 26672378 is about 5164.5307628090. The cubic root of 26672378 is about 298.7816439115.

The spelling of 26672378 in words is "twenty-six million, six hundred seventy-two thousand, three hundred seventy-eight".