20341445 has 6 divisors (see below), whose sum is σ = 24421842. Its totient is φ = 16265088.

The previous prime is 20341439. The next prime is 20341481. The reversal of 20341445 is 54414302.

It can be written as a sum of positive squares in 3 ways, for example, as 8514724 + 11826721 = 2918^2 + 3439^2 .

It is not a de Polignac number, because 20341445 - 2¹² = 20337349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20341445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9077 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (4070307).

Almost surely, 2^20341445 is an apocalyptic number.

It is an amenable number.

20341445 is a deficient number, since it is larger than the sum of its proper divisors (4080397).

20341445 is an frugal number, since it uses more digits than its factorization.

20341445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20341445 is about 4510.1491106171. The cubic root of 20341445 is about 272.9777607596.

Adding to 20341445 its reverse (54414302), we get a palindrome (74755747).

The spelling of 20341445 in words is "twenty million, three hundred forty-one thousand, four hundred forty-five".