1144351660 has 48 divisors (see below), whose sum is σ = 2512181952. Its totient is φ = 437043200.

The previous prime is 1144351657. The next prime is 1144351667. The reversal of 1144351660 is 661534411.

It is not an unprimeable number, because it can be changed into a prime (1144351667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292920 + ... + 296800.

It is an arithmetic number, because the mean of its divisors is an integer number (52337124).

Almost surely, 2^1144351660 is an apocalyptic number.

1144351660 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 1144351660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256090976).

1144351660 is an abundant number, since it is smaller than the sum of its proper divisors (1367830292).

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

1144351660 is a wasteful number, since it uses less digits than its factorization.

1144351660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1144351660 is about 33828.2671740661. The cubic root of 1144351660 is about 1045.9714598952.

The spelling of 1144351660 in words is "one billion, one hundred forty-four million, three hundred fifty-one thousand, six hundred sixty".