2222440 has 32 divisors (see below), whose sum is σ = 5456160. Its totient is φ = 808000.

The previous prime is 2222387. The next prime is 2222443. The reversal of 2222440 is 442222.

It is not an unprimeable number, because it can be changed into a prime (2222443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (170505).

2^2222440 is an apocalyptic number.

2222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222440 is an abundant number, since it is smaller than the sum of its proper divisors (3233720).

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

2222440 is a wasteful number, since it uses less digits than its factorization.

2222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2222440 is about 1490.7850280976. The cubic root of 2222440 is about 130.4998507556.

Adding to 2222440 its reverse (442222), we get a palindrome (2664662).

It can be divided in two parts, 2222 and 440, that added together give a palindrome (2662).

The spelling of 2222440 in words is "two million, two hundred twenty-two thousand, four hundred forty".