1422909 has 12 divisors (see below), whose sum is σ = 2111356. Its totient is φ = 922752.

The previous prime is 1422907. The next prime is 1422923. The reversal of 1422909 is 9092241.

It can be written as a sum of positive squares in 2 ways, for example, as 864900 + 558009 = 930^2 + 747^2 .

It is not a de Polignac number, because 1422909 - 2¹ = 1422907 is a prime.

It is a Duffinian number.

1422909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1804 + ... + 2469.

2^1422909 is an apocalyptic number.

It is an amenable number.

1422909 is a deficient number, since it is larger than the sum of its proper divisors (688447).

1422909 is a wasteful number, since it uses less digits than its factorization.

1422909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1422909 is about 1192.8574935842. The cubic root of 1422909 is about 112.4757873818.

The spelling of 1422909 in words is "one million, four hundred twenty-two thousand, nine hundred nine".