1409489 has 2 divisors, whose sum is σ = 1409490. Its totient is φ = 1409488.

The previous prime is 1409467. The next prime is 1409491. The reversal of 1409489 is 9849041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399489 + 10000 = 1183^2 + 100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1409489 is a prime.

It is a super-2 number, since 2×1409489² = 3973318482242, which contains 22 as substring.

Together with 1409491, 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 (1409459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704744 + 704745.

It is an arithmetic number, because the mean of its divisors is an integer number (704745).

2^1409489 is an apocalyptic number.

It is an amenable number.

1409489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409489 is an equidigital number, since it uses as much as digits as its factorization.

1409489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1409489 is about 1187.2190193894. The cubic root of 1409489 is about 112.1210691227.

Adding to 1409489 its product of nonzero digits (10368), we get a 5-th power (1419857 = 17⁵).

The spelling of 1409489 in words is "one million, four hundred nine thousand, four hundred eighty-nine".