1143996490 has 48 divisors (see below), whose sum is σ = 2548343808. Its totient is φ = 362052288.

The previous prime is 1143996481. The next prime is 1143996493. The reversal of 1143996490 is 946993411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143996490.

It is not an unprimeable number, because it can be changed into a prime (1143996493) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 36522 + ... + 60181.

It is an arithmetic number, because the mean of its divisors is an integer number (53090496).

Almost surely, 2^1143996490 is an apocalyptic number.

1143996490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143996490 is an abundant number, since it is smaller than the sum of its proper divisors (1404347318).

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

1143996490 is a wasteful number, since it uses less digits than its factorization.

1143996490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96743 (or 96730 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1143996490 is about 33823.0171628730. The cubic root of 1143996490 is about 1045.8632367162.

The spelling of 1143996490 in words is "one billion, one hundred forty-three million, nine hundred ninety-six thousand, four hundred ninety".