20260345 has 24 divisors (see below), whose sum is σ = 29530944. Its totient is φ = 13069056.

The previous prime is 20260319. The next prime is 20260351. The reversal of 20260345 is 54306202.

It is a happy number.

It is not a de Polignac number, because 20260345 - 2²³ = 11871737 is a prime.

It is a Duffinian 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, 9114 + ... + 11116.

It is an arithmetic number, because the mean of its divisors is an integer number (1230456).

Almost surely, 2^20260345 is an apocalyptic number.

It is an amenable number.

20260345 is a deficient number, since it is larger than the sum of its proper divisors (9270599).

20260345 is a wasteful number, since it uses less digits than its factorization.

20260345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20260345 is about 4501.1492976794. The cubic root of 20260345 is about 272.6144961158.

Adding to 20260345 its reverse (54306202), we get a palindrome (74566547).

The spelling of 20260345 in words is "twenty million, two hundred sixty thousand, three hundred forty-five".