20144413 has 4 divisors (see below), whose sum is σ = 20159680. Its totient is φ = 20129148.

The previous prime is 20144387. The next prime is 20144417. The reversal of 20144413 is 31444102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20144413 - 2⁹ = 20143901 is a prime.

It is a super-2 number, since 2×20144413² = 811594750229138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144417) 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, 5445 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (5039920).

Almost surely, 2^20144413 is an apocalyptic number.

It is an amenable number.

20144413 is a deficient number, since it is larger than the sum of its proper divisors (15267).

20144413 is a wasteful number, since it uses less digits than its factorization.

20144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15266.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20144413 is about 4488.2527780864. The cubic root of 20144413 is about 272.0935241035.

Adding to 20144413 its reverse (31444102), we get a palindrome (51588515).

The spelling of 20144413 in words is "twenty million, one hundred forty-four thousand, four hundred thirteen".