1422664 has 16 divisors (see below), whose sum is σ = 2686320. Its totient is φ = 706320.

The previous prime is 1422661. The next prime is 1422671. The reversal of 1422664 is 4662241.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1422661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (167895).

2^1422664 is an apocalyptic number.

It is an amenable number.

1422664 is a deficient number, since it is larger than the sum of its proper divisors (1263656).

1422664 is a wasteful number, since it uses less digits than its factorization.

1422664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1256 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1422664 is about 1192.7547945827. The cubic root of 1422664 is about 112.4693315580.

The spelling of 1422664 in words is "one million, four hundred twenty-two thousand, six hundred sixty-four".