1623272 has 48 divisors (see below), whose sum is σ = 3662820. Its totient is φ = 672000.

The previous prime is 1623269. The next prime is 1623283. The reversal of 1623272 is 2723261.

It can be written as a sum of positive squares in 2 ways, for example, as 1623076 + 196 = 1274^2 + 14^2 .

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, 16022 + ... + 16122.

2^1623272 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 1623272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831410).

1623272 is an abundant number, since it is smaller than the sum of its proper divisors (2039548).

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

1623272 is a wasteful number, since it uses less digits than its factorization.

1623272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 151 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 1623272 is about 1274.0769207548. The cubic root of 1623272 is about 117.5250467203.

The spelling of 1623272 in words is "one million, six hundred twenty-three thousand, two hundred seventy-two".