1422864 has 60 divisors (see below), whose sum is σ = 4096092. Its totient is φ = 460800.

The previous prime is 1422857. The next prime is 1422877. The reversal of 1422864 is 4682241.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 921600 = 708^2 + 960^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5784 + ... + 6024.

2^1422864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048046).

1422864 is an abundant number, since it is smaller than the sum of its proper divisors (2673228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422864 is a wasteful number, since it uses less digits than its factorization.

1422864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 287 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1422864 is about 1192.8386311652. The cubic root of 1422864 is about 112.4746016738.

The spelling of 1422864 in words is "one million, four hundred twenty-two thousand, eight hundred sixty-four".