1143904032 has 72 divisors (see below), whose sum is σ = 3373480656. Its totient is φ = 381298752.

The previous prime is 1143904009. The next prime is 1143904039. The reversal of 1143904032 is 2304093411.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1143903987 and 1143904005.

It is not an unprimeable number, because it can be changed into a prime (1143904039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65778 + ... + 81329.

It is an arithmetic number, because the mean of its divisors is an integer number (46853898).

Almost surely, 2^1143904032 is an apocalyptic number.

1143904032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143904032 is an abundant number, since it is smaller than the sum of its proper divisors (2229576624).

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

1143904032 is an equidigital number, since it uses as much as digits as its factorization.

1143904032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147132 (or 147112 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1143904032 is about 33821.6503441213. The cubic root of 1143904032 is about 1045.8350603394.

Adding to 1143904032 its reverse (2304093411), we get a palindrome (3447997443).

The spelling of 1143904032 in words is "one billion, one hundred forty-three million, nine hundred four thousand, thirty-two".