405013769 has 2 divisors, whose sum is σ = 405013770. Its totient is φ = 405013768.

The previous prime is 405013759. The next prime is 405013771. The reversal of 405013769 is 967310504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383964025 + 21049744 = 19595^2 + 4588^2 .

It is a cyclic number.

It is not a de Polignac number, because 405013769 - 2¹² = 405009673 is a prime.

It is a super-2 number, since 2×405013769² = 328072306159170722, which contains 22 as substring.

Together with 405013771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (405013759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202506884 + 202506885.

It is an arithmetic number, because the mean of its divisors is an integer number (202506885).

Almost surely, 2^405013769 is an apocalyptic number.

It is an amenable number.

405013769 is a deficient number, since it is larger than the sum of its proper divisors (1).

405013769 is an equidigital number, since it uses as much as digits as its factorization.

405013769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 405013769 is about 20124.9538881459. The cubic root of 405013769 is about 739.8720067162.

The spelling of 405013769 in words is "four hundred five million, thirteen thousand, seven hundred sixty-nine".