1408682369 has 2 divisors, whose sum is σ = 1408682370. Its totient is φ = 1408682368.

The previous prime is 1408682347. The next prime is 1408682383. The reversal of 1408682369 is 9632868041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006158400 + 402523969 = 31720^2 + 20063^2 .

It is a cyclic number.

It is not a de Polignac number, because 1408682369 - 2²⁴ = 1391905153 is a prime.

It is a super-2 number, since 2×1408682369² = 3968772033462904322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1408681369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704341184 + 704341185.

It is an arithmetic number, because the mean of its divisors is an integer number (704341185).

Almost surely, 2^1408682369 is an apocalyptic number.

It is an amenable number.

1408682369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408682369 is an equidigital number, since it uses as much as digits as its factorization.

1408682369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1408682369 is about 37532.4175746780. The cubic root of 1408682369 is about 1120.9967659724.

The spelling of 1408682369 in words is "one billion, four hundred eight million, six hundred eighty-two thousand, three hundred sixty-nine".