2142272 has 56 divisors (see below), whose sum is σ = 4937760. Its totient is φ = 911360.

The previous prime is 2142271. The next prime is 2142281. The reversal of 2142272 is 2722412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2142271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11879 + ... + 12057.

2^2142272 is an apocalyptic number.

2142272 is a gapful number since it is divisible by the number (22) 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 2142272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2468880).

2142272 is an abundant number, since it is smaller than the sum of its proper divisors (2795488).

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

2142272 is a wasteful number, since it uses less digits than its factorization.

2142272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 2142272 is about 1463.6502314419. The cubic root of 2142272 is about 128.9114629946.

Adding to 2142272 its reverse (2722412), we get a palindrome (4864684).

The spelling of 2142272 in words is "two million, one hundred forty-two thousand, two hundred seventy-two".