2293720 has 64 divisors (see below), whose sum is σ = 6078240. Its totient is φ = 768000.

The previous prime is 2293703. The next prime is 2293723. The reversal of 2293720 is 273922.

It is a super-2 number, since 2×2293720² = 10522302876800, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2293723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5520 + ... + 5920.

2^2293720 is an apocalyptic number.

2293720 is a gapful number since it is divisible by the number (20) 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 2293720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3039120).

2293720 is an abundant number, since it is smaller than the sum of its proper divisors (3784520).

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

2293720 is a wasteful number, since it uses less digits than its factorization.

2293720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2293720 is about 1514.5032188807. The cubic root of 2293720 is about 131.8803629813.

The spelling of 2293720 in words is "two million, two hundred ninety-three thousand, seven hundred twenty".