1088388 has 54 divisors (see below), whose sum is σ = 3205566. Its totient is φ = 310464.

The previous prime is 1088387. The next prime is 1088389. The reversal of 1088388 is 8838801.

It is an interprime number because it is at equal distance from previous prime (1088387) and next prime (1088389).

It can be written as a sum of positive squares in only one way, i.e., 636804 + 451584 = 798^2 + 672^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1088387) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1456 + ... + 2072.

2^1088388 is an apocalyptic number.

1088388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1088388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602783).

1088388 is an abundant number, since it is smaller than the sum of its proper divisors (2117178).

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

1088388 is a wasteful number, since it uses less digits than its factorization.

1088388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1088388 is about 1043.2583572634. The cubic root of 1088388 is about 102.8634883651.

The spelling of 1088388 in words is "one million, eighty-eight thousand, three hundred eighty-eight".