1409419709 has 2 divisors, whose sum is σ = 1409419710. Its totient is φ = 1409419708.

The previous prime is 1409419679. The next prime is 1409419717. The reversal of 1409419709 is 9079149041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889351684 + 520068025 = 29822^2 + 22805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1409419709 is a prime.

It is a super-2 number, since 2×1409419709² = 3972927832235289362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1409419709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1409419769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704709854 + 704709855.

It is an arithmetic number, because the mean of its divisors is an integer number (704709855).

Almost surely, 2^1409419709 is an apocalyptic number.

It is an amenable number.

1409419709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409419709 is an equidigital number, since it uses as much as digits as its factorization.

1409419709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1409419709 is about 37542.2389982271. The cubic root of 1409419709 is about 1121.1923178825.

The spelling of 1409419709 in words is "one billion, four hundred nine million, four hundred nineteen thousand, seven hundred nine".