2188488 has 32 divisors (see below), whose sum is σ = 5556960. Its totient is φ = 718080.

The previous prime is 2188481. The next prime is 2188489. The reversal of 2188488 is 8848812.

It is a super-2 number, since 2×2188488² = 9578959452288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2188481) 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, 928 + ... + 2288.

It is an arithmetic number, because the mean of its divisors is an integer number (173655).

2^2188488 is an apocalyptic number.

It is an amenable number.

2188488 is an abundant number, since it is smaller than the sum of its proper divisors (3368472).

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

2188488 is a wasteful number, since it uses less digits than its factorization.

2188488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1433 counting only the distinct ones).

The product of its digits is 32768, while the sum is 39.

The square root of 2188488 is about 1479.3539130310. The cubic root of 2188488 is about 129.8318931634.

The spelling of 2188488 in words is "two million, one hundred eighty-eight thousand, four hundred eighty-eight".