20414437 has 2 divisors, whose sum is σ = 20414438. Its totient is φ = 20414436.

The previous prime is 20414411. The next prime is 20414441. The reversal of 20414437 is 73441402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 6974881 = 3666^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 20414437 - 2¹⁹ = 19890149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207218 + 10207219.

It is an arithmetic number, because the mean of its divisors is an integer number (10207219).

Almost surely, 2^20414437 is an apocalyptic number.

It is an amenable number.

20414437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20414437 is an equidigital number, since it uses as much as digits as its factorization.

20414437 is an evil number, because the sum of its binary digits is even.

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

The square root of 20414437 is about 4518.2338363569. The cubic root of 20414437 is about 273.3038832372.

Adding to 20414437 its reverse (73441402), we get a palindrome (93855839).

It can be divided in two parts, 204 and 14437, that added together give a palindrome (14641).

The spelling of 20414437 in words is "twenty million, four hundred fourteen thousand, four hundred thirty-seven".