1122888 has 64 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 334080.

The previous prime is 1122887. The next prime is 1122899. The reversal of 1122888 is 8882211.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is a plaindrome in base 10 and base 16.

It is a nialpdrome in base 8.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18378 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (48825).

2^1122888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562400).

1122888 is an abundant number, since it is smaller than the sum of its proper divisors (2001912).

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

1122888 is a wasteful number, since it uses less digits than its factorization.

1122888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 138 counting only the distinct ones).

The product of its digits is 2048, while the sum is 30.

The square root of 1122888 is about 1059.6640977215. The cubic root of 1122888 is about 103.9390668706.

The spelling of 1122888 in words is "one million, one hundred twenty-two thousand, eight hundred eighty-eight".