20314645 has 24 divisors (see below), whose sum is σ = 27340200. Its totient is φ = 14466816.

The previous prime is 20314633. The next prime is 20314663. The reversal of 20314645 is 54641302.

It can be written as a sum of positive squares in 12 ways, for example, as 10536516 + 9778129 = 3246^2 + 3127^2 .

It is not a de Polignac number, because 20314645 - 2¹¹ = 20312597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24091 + ... + 24919.

It is an arithmetic number, because the mean of its divisors is an integer number (1139175).

Almost surely, 2^20314645 is an apocalyptic number.

It is an amenable number.

20314645 is a deficient number, since it is larger than the sum of its proper divisors (7025555).

20314645 is a wasteful number, since it uses less digits than its factorization.

20314645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20314645 is about 4507.1770544322. The cubic root of 20314645 is about 272.8578246846.

Adding to 20314645 its reverse (54641302), we get a palindrome (74955947).

The spelling of 20314645 in words is "twenty million, three hundred fourteen thousand, six hundred forty-five".