20694026 has 8 divisors (see below), whose sum is σ = 31880100. Its totient is φ = 10067328.

The previous prime is 20694017. The next prime is 20694031. The reversal of 20694026 is 62049602.

It can be written as a sum of positive squares in 2 ways, for example, as 20693401 + 625 = 4549^2 + 25^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20694026.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 139751 + ... + 139898.

Almost surely, 2^20694026 is an apocalyptic number.

20694026 is a deficient number, since it is larger than the sum of its proper divisors (11186074).

20694026 is a wasteful number, since it uses less digits than its factorization.

20694026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279688.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20694026 is about 4549.0686958981. The cubic root of 20694026 is about 274.5459217158.

The spelling of 20694026 in words is "twenty million, six hundred ninety-four thousand, twenty-six".