20313046 has 8 divisors (see below), whose sum is σ = 32813424. Its totient is φ = 9375240.

The previous prime is 20313001. The next prime is 20313047. The reversal of 20313046 is 64031302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390610 + ... + 390661.

It is an arithmetic number, because the mean of its divisors is an integer number (4101678).

Almost surely, 2^20313046 is an apocalyptic number.

20313046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20313046 is a deficient number, since it is larger than the sum of its proper divisors (12500378).

20313046 is a wasteful number, since it uses less digits than its factorization.

20313046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781286.

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

The square root of 20313046 is about 4506.9996671844. Note that the first 3 decimals coincide. The cubic root of 20313046 is about 272.8506654634.

Adding to 20313046 its reverse (64031302), we get a palindrome (84344348).

The spelling of 20313046 in words is "twenty million, three hundred thirteen thousand, forty-six".