1142228808 has 108 divisors (see below), whose sum is σ = 3604939065. Its totient is φ = 325777536.

The previous prime is 1142228803. The next prime is 1142228809. The reversal of 1142228808 is 8088222411.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 994897764 + 147331044 = 31542^2 + 12138^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23898.

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 (1142228803) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2007148 + ... + 2007716.

Almost surely, 2^1142228808 is an apocalyptic number.

1142228808 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 1142228808

1142228808 is an abundant number, since it is smaller than the sum of its proper divisors (2462710257).

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

1142228808 is an equidigital number, since it uses as much as digits as its factorization.

1142228808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 1142228808 is about 33796.8757135922. The cubic root of 1142228808 is about 1045.3242762466.

The spelling of 1142228808 in words is "one billion, one hundred forty-two million, two hundred twenty-eight thousand, eight hundred eight".