1145440332 has 96 divisors (see below), whose sum is σ = 3011500800. Its totient is φ = 376482816.

The previous prime is 1145440277. The next prime is 1145440333. The reversal of 1145440332 is 2330445411.

It is a happy number.

1145440332 is a `hidden beast` number, since 114 + 544 + 0 + 3 + 3 + 2 = 666.

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 = 1145440296 and 1145440305.

It is not an unprimeable number, because it can be changed into a prime (1145440333) 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, 3730923 + ... + 3731229.

It is an arithmetic number, because the mean of its divisors is an integer number (31369800).

Almost surely, 2^1145440332 is an apocalyptic number.

1145440332 is a gapful number since it is divisible by the number (12) 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 1145440332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505750400).

1145440332 is an abundant number, since it is smaller than the sum of its proper divisors (1866060468).

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

1145440332 is a wasteful number, since it uses less digits than its factorization.

1145440332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1145440332 is about 33844.3545070666. The cubic root of 1145440332 is about 1046.3030476308.

Adding to 1145440332 its reverse (2330445411), we get a palindrome (3475885743).

The spelling of 1145440332 in words is "one billion, one hundred forty-five million, four hundred forty thousand, three hundred thirty-two".