1145439360 has 256 divisors, whose sum is σ = 4369680000. Its totient is φ = 281899008.

The previous prime is 1145439329. The next prime is 1145439389. The reversal of 1145439360 is 639345411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222091 + ... + 227189.

Almost surely, 2^1145439360 is an apocalyptic number.

1145439360 is a gapful number since it is divisible by the number (10) 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 1145439360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184840000).

1145439360 is an abundant number, since it is smaller than the sum of its proper divisors (3224240640).

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

1145439360 is a wasteful number, since it uses less digits than its factorization.

1145439360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140 (or 5122 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1145439360 is about 33844.3401472093. The cubic root of 1145439360 is about 1046.3027516728.

The spelling of 1145439360 in words is "one billion, one hundred forty-five million, four hundred thirty-nine thousand, three hundred sixty".