1181469888 has 224 divisors, whose sum is σ = 3679057920. Its totient is φ = 375674112.

The previous prime is 1181469881. The next prime is 1181469901. The reversal of 1181469888 is 8889641811.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 (1181469881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3219081 + ... + 3219447.

Almost surely, 2^1181469888 is an apocalyptic number.

1181469888 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 1181469888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839528960).

1181469888 is an abundant number, since it is smaller than the sum of its proper divisors (2497588032).

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

1181469888 is an frugal number, since it uses more digits than its factorization.

1181469888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 395 counting only the distinct ones).

The product of its digits is 884736, while the sum is 54.

The square root of 1181469888 is about 34372.5164630115. The cubic root of 1181469888 is about 1057.1603979698.

The spelling of 1181469888 in words is "one billion, one hundred eighty-one million, four hundred sixty-nine thousand, eight hundred eighty-eight".