1143662460 has 96 divisors (see below), whose sum is σ = 3280435200. Its totient is φ = 297623040.

The previous prime is 1143662449. The next prime is 1143662467. The reversal of 1143662460 is 642663411.

1143662460 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143662467) 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, 420505 + ... + 423215.

It is an arithmetic number, because the mean of its divisors is an integer number (34171200).

Almost surely, 2^1143662460 is an apocalyptic number.

1143662460 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 1143662460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640217600).

1143662460 is an abundant number, since it is smaller than the sum of its proper divisors (2136772740).

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

1143662460 is a wasteful number, since it uses less digits than its factorization.

1143662460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1143662460 is about 33818.0788928053. The cubic root of 1143662460 is about 1045.7614346252.

The spelling of 1143662460 in words is "one billion, one hundred forty-three million, six hundred sixty-two thousand, four hundred sixty".