26945642 has 4 divisors (see below), whose sum is σ = 40418466. Its totient is φ = 13472820.

The previous prime is 26945623. The next prime is 26945647. The reversal of 26945642 is 24654962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19811401 + 7134241 = 4451^2 + 2671^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26945596 and 26945605.

It is not an unprimeable number, because it can be changed into a prime (26945647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736409 + ... + 6736412.

Almost surely, 2^26945642 is an apocalyptic number.

26945642 is a deficient number, since it is larger than the sum of its proper divisors (13472824).

26945642 is a wasteful number, since it uses less digits than its factorization.

26945642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13472823.

The product of its digits is 103680, while the sum is 38.

The square root of 26945642 is about 5190.9191864255. The cubic root of 26945642 is about 299.7985388157.

The spelling of 26945642 in words is "twenty-six million, nine hundred forty-five thousand, six hundred forty-two".