2238688 has 12 divisors (see below), whose sum is σ = 4407480. Its totient is φ = 1119328.

The previous prime is 2238673. The next prime is 2238703. The reversal of 2238688 is 8868322.

It is an interprime number because it is at equal distance from previous prime (2238673) and next prime (2238703).

It is a super-2 number, since 2×2238688² = 10023447922688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34948 + ... + 35011.

It is an arithmetic number, because the mean of its divisors is an integer number (367290).

2^2238688 is an apocalyptic number.

It is an amenable number.

2238688 is a deficient number, since it is larger than the sum of its proper divisors (2168792).

2238688 is an equidigital number, since it uses as much as digits as its factorization.

2238688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69969 (or 69961 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 2238688 is about 1496.2245820732. The cubic root of 2238688 is about 130.8171019482.

It can be divided in two parts, 2238 and 688, that added together give a triangular number (2926 = T₇₆).

The spelling of 2238688 in words is "two million, two hundred thirty-eight thousand, six hundred eighty-eight".