1422989 has 8 divisors (see below), whose sum is σ = 1464312. Its totient is φ = 1382400.

The previous prime is 1422979. The next prime is 1422991. The reversal of 1422989 is 9892241.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 990025 = 658^2 + 995^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1422989 - 2⁴ = 1422973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7277 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (183039).

2^1422989 is an apocalyptic number.

It is an amenable number.

1422989 is a deficient number, since it is larger than the sum of its proper divisors (41323).

1422989 is a wasteful number, since it uses less digits than its factorization.

1422989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

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

The square root of 1422989 is about 1192.8910260372. The cubic root of 1422989 is about 112.4778952455.

The spelling of 1422989 in words is "one million, four hundred twenty-two thousand, nine hundred eighty-nine".