20414200409 has 2 divisors, whose sum is σ = 20414200410. Its totient is φ = 20414200408.

The previous prime is 20414200399. The next prime is 20414200441. The reversal of 20414200409 is 90400241402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13455304009 + 6958896400 = 115997^2 + 83420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20414200409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20414200909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207100204 + 10207100205.

It is an arithmetic number, because the mean of its divisors is an integer number (10207100205).

Almost surely, 2^20414200409 is an apocalyptic number.

It is an amenable number.

20414200409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20414200409 is an equidigital number, since it uses as much as digits as its factorization.

20414200409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 20414200409 in words is "twenty billion, four hundred fourteen million, two hundred thousand, four hundred nine".