1142454784 has 20 divisors (see below), whose sum is σ = 2282679234. Its totient is φ = 571227136.

The previous prime is 1142454763. The next prime is 1142454793. The reversal of 1142454784 is 4874542411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1060153600 + 82301184 = 32560^2 + 9072^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115167 + ... + 1116190.

Almost surely, 2^1142454784 is an apocalyptic number.

It is an amenable number.

1142454784 is a deficient number, since it is larger than the sum of its proper divisors (1140224450).

1142454784 is an frugal number, since it uses more digits than its factorization.

1142454784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231375 (or 2231359 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 1142454784 is about 33800.2186975173. The cubic root of 1142454784 is about 1045.3932065757.

The spelling of 1142454784 in words is "one billion, one hundred forty-two million, four hundred fifty-four thousand, seven hundred eighty-four".