1449869 has 2 divisors, whose sum is σ = 1449870. Its totient is φ = 1449868.

The previous prime is 1449863. The next prime is 1449893. The reversal of 1449869 is 9689441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 570025 = 938^2 + 755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1449869 is a prime.

It is a super-2 number, since 2×1449869² = 4204240234322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724934 + 724935.

It is an arithmetic number, because the mean of its divisors is an integer number (724935).

2^1449869 is an apocalyptic number.

It is an amenable number.

1449869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449869 is an equidigital number, since it uses as much as digits as its factorization.

1449869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 1449869 is about 1204.1050618613. The cubic root of 1449869 is about 113.1817109303.

The spelling of 1449869 in words is "one million, four hundred forty-nine thousand, eight hundred sixty-nine".