2272420 has 12 divisors (see below), whose sum is σ = 4772124. Its totient is φ = 908960.

The previous prime is 2272409. The next prime is 2272427. The reversal of 2272420 is 242722.

It can be written as a sum of positive squares in 2 ways, for example, as 968256 + 1304164 = 984^2 + 1142^2 .

It is not an unprimeable number, because it can be changed into a prime (2272427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56791 + ... + 56830.

It is an arithmetic number, because the mean of its divisors is an integer number (397677).

2^2272420 is an apocalyptic number.

2272420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272420 is an abundant number, since it is smaller than the sum of its proper divisors (2499704).

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

2272420 is a wasteful number, since it uses less digits than its factorization.

2272420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113630 (or 113628 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 2272420 is about 1507.4548086095. The cubic root of 2272420 is about 131.4708692285.

The spelling of 2272420 in words is "two million, two hundred seventy-two thousand, four hundred twenty".