1142888 has 32 divisors (see below), whose sum is σ = 2308800. Its totient is φ = 528768.

The previous prime is 1142881. The next prime is 1142891. The reversal of 1142888 is 8882411.

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 (1142881) 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, 11045 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (72150).

2^1142888 is an apocalyptic number.

It is an amenable number.

1142888 is an abundant number, since it is smaller than the sum of its proper divisors (1165912).

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

1142888 is a wasteful number, since it uses less digits than its factorization.

1142888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 197 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 1142888 is about 1069.0593996593. The cubic root of 1142888 is about 104.5525326708.

The spelling of 1142888 in words is "one million, one hundred forty-two thousand, eight hundred eighty-eight".