20344741 has 4 divisors (see below), whose sum is σ = 20531500. Its totient is φ = 20157984.

The previous prime is 20344703. The next prime is 20344759. The reversal of 20344741 is 14744302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14744302 = 2 ⋅7372151.

It can be written as a sum of positive squares in 2 ways, for example, as 18533025 + 1811716 = 4305^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 20344741 - 2⁷ = 20344613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344141) 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, 93216 + ... + 93433.

It is an arithmetic number, because the mean of its divisors is an integer number (5132875).

Almost surely, 2^20344741 is an apocalyptic number.

It is an amenable number.

20344741 is a deficient number, since it is larger than the sum of its proper divisors (186759).

20344741 is a wasteful number, since it uses less digits than its factorization.

20344741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186758.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20344741 is about 4510.5144939353. The cubic root of 20344741 is about 272.9925038306.

It can be divided in two parts, 203 and 44741, that added together give a palindrome (44944).

The spelling of 20344741 in words is "twenty million, three hundred forty-four thousand, seven hundred forty-one".