2222388 has 36 divisors (see below), whose sum is σ = 6420960. Its totient is φ = 634896.

The previous prime is 2222387. The next prime is 2222443. The reversal of 2222388 is 8832222.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4158 + ... + 4661.

It is an arithmetic number, because the mean of its divisors is an integer number (178360).

2^2222388 is an apocalyptic number.

2222388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2222388 is an abundant number, since it is smaller than the sum of its proper divisors (4198572).

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

2222388 is a wasteful number, since it uses less digits than its factorization.

2222388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8836 (or 8831 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 2222388 is about 1490.7675875199. The cubic root of 2222388 is about 130.4988329486.

The spelling of 2222388 in words is "two million, two hundred twenty-two thousand, three hundred eighty-eight".