1143341920 has 48 divisors (see below), whose sum is σ = 3087026208. Its totient is φ = 392002560.

The previous prime is 1143341909. The next prime is 1143341933. The reversal of 1143341920 is 291433411.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509301 + ... + 511540.

It is an arithmetic number, because the mean of its divisors is an integer number (64313046).

Almost surely, 2^1143341920 is an apocalyptic number.

1143341920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143341920 is an abundant number, since it is smaller than the sum of its proper divisors (1943684288).

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

1143341920 is a wasteful number, since it uses less digits than its factorization.

1143341920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020863 (or 1020855 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1143341920 is about 33813.3393795999. The cubic root of 1143341920 is about 1045.6637252329.

The spelling of 1143341920 in words is "one billion, one hundred forty-three million, three hundred forty-one thousand, nine hundred twenty".