1142740736 has 18 divisors (see below), whose sum is σ = 2281018152. Its totient is φ = 571370240.

The previous prime is 1142740723. The next prime is 1142740741. The reversal of 1142740736 is 6370472411.

It is a junction number, because it is equal to n+sod(n) for n = 1142740696 and 1142740705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2231660 + ... + 2232171.

Almost surely, 2^1142740736 is an apocalyptic number.

1142740736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1142740736 is a deficient number, since it is larger than the sum of its proper divisors (1138277416).

1142740736 is an frugal number, since it uses more digits than its factorization.

1142740736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463847 (or 4463833 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1142740736 is about 33804.4484646622. The cubic root of 1142740736 is about 1045.4804185877.

The spelling of 1142740736 in words is "one billion, one hundred forty-two million, seven hundred forty thousand, seven hundred thirty-six".