2273720 has 16 divisors (see below), whose sum is σ = 5115960. Its totient is φ = 909472.

The previous prime is 2273701. The next prime is 2273729. The reversal of 2273720 is 273722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273729) 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, 28382 + ... + 28461.

2^2273720 is an apocalyptic number.

2273720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273720 is an abundant number, since it is smaller than the sum of its proper divisors (2842240).

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

2273720 is a wasteful number, since it uses less digits than its factorization.

2273720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56854 (or 56850 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 2273720 is about 1507.8859373308. The cubic root of 2273720 is about 131.4959349512.

The spelling of 2273720 in words is "two million, two hundred seventy-three thousand, seven hundred twenty".