2293440 has 56 divisors (see below), whose sum is σ = 7284720. Its totient is φ = 611328.

The previous prime is 2293439. The next prime is 2293463. The reversal of 2293440 is 443922.

It is a happy number.

2293440 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2293440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235 + ... + 2154.

2^2293440 is an apocalyptic number.

2293440 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 2293440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3642360).

2293440 is an abundant number, since it is smaller than the sum of its proper divisors (4991280).

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

2293440 is a wasteful number, since it uses less digits than its factorization.

2293440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2293440 is about 1514.4107765068. The cubic root of 2293440 is about 131.8749964436.

The spelling of 2293440 in words is "two million, two hundred ninety-three thousand, four hundred forty".