20313406 has 8 divisors (see below), whose sum is σ = 30601584. Its totient is φ = 10112880.

The previous prime is 20313389. The next prime is 20313421. The reversal of 20313406 is 60431302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21330 + ... + 22261.

It is an arithmetic number, because the mean of its divisors is an integer number (3825198).

Almost surely, 2^20313406 is an apocalyptic number.

20313406 is a deficient number, since it is larger than the sum of its proper divisors (10288178).

20313406 is a wasteful number, since it uses less digits than its factorization.

20313406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43826.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20313406 is about 4507.0396048848. The cubic root of 20313406 is about 272.8522773284.

Adding to 20313406 its reverse (60431302), we get a palindrome (80744708).

The spelling of 20313406 in words is "twenty million, three hundred thirteen thousand, four hundred six".