1423722 has 8 divisors (see below), whose sum is σ = 2847456. Its totient is φ = 474572.

The previous prime is 1423717. The next prime is 1423753. The reversal of 1423722 is 2273241.

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

1423722 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118638 + ... + 118649.

It is an arithmetic number, because the mean of its divisors is an integer number (355932).

2^1423722 is an apocalyptic number.

1423722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1423722 is a wasteful number, since it uses less digits than its factorization.

1423722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237292.

The product of its digits is 672, while the sum is 21.

The square root of 1423722 is about 1193.1982232638. The cubic root of 1423722 is about 112.4972048688.

Adding to 1423722 its reverse (2273241), we get a palindrome (3696963).

It can be divided in two parts, 1423 and 722, that added together give a triangular number (2145 = T₆₅).

The spelling of 1423722 in words is "one million, four hundred twenty-three thousand, seven hundred twenty-two".