2213988 has 24 divisors (see below), whose sum is σ = 5904192. Its totient is φ = 632544.

The previous prime is 2213983. The next prime is 2214001. The reversal of 2213988 is 8893122.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2213983) 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, 13095 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (246008).

2^2213988 is an apocalyptic number.

2213988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2213988 is an abundant number, since it is smaller than the sum of its proper divisors (3690204).

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

2213988 is a wasteful number, since it uses less digits than its factorization.

2213988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26371 (or 26369 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 2213988 is about 1487.9475797218. The cubic root of 2213988 is about 130.3342090994.

The spelling of 2213988 in words is "two million, two hundred thirteen thousand, nine hundred eighty-eight".