20692466 has 8 divisors (see below), whose sum is σ = 31119660. Its totient is φ = 10319248.

The previous prime is 20692429. The next prime is 20692487. The reversal of 20692466 is 66429602.

It can be written as a sum of positive squares in 2 ways, for example, as 20511841 + 180625 = 4529^2 + 425^2 .

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

It is a super-2 number, since 2×20692466² = 856356298322312, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 12521 + ... + 14076.

Almost surely, 2^20692466 is an apocalyptic number.

20692466 is a deficient number, since it is larger than the sum of its proper divisors (10427194).

20692466 is a wasteful number, since it uses less digits than its factorization.

20692466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26988.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 20692466 is about 4548.8972289996. The cubic root of 20692466 is about 274.5390227457.

The spelling of 20692466 in words is "twenty million, six hundred ninety-two thousand, four hundred sixty-six".