1422372 has 72 divisors (see below), whose sum is σ = 4021920. Its totient is φ = 389760.

The previous prime is 1422367. The next prime is 1422409. The reversal of 1422372 is 2732241.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

Its product of digits (672) is a multiple of the sum of its prime divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24079 + ... + 24137.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

2^1422372 is an apocalyptic number.

1422372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010960).

1422372 is an abundant number, since it is smaller than the sum of its proper divisors (2599548).

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

1422372 is a wasteful number, since it uses less digits than its factorization.

1422372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 112 counting only the distinct ones).

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

The square root of 1422372 is about 1192.6323825890. The cubic root of 1422372 is about 112.4616363018.

The spelling of 1422372 in words is "one million, four hundred twenty-two thousand, three hundred seventy-two".