1142866782 has 24 divisors (see below), whose sum is σ = 2500256304. Its totient is φ = 377256384.

The previous prime is 1142866729. The next prime is 1142866783. The reversal of 1142866782 is 2876682411.

It is a super-2 number, since 2×1142866782² = 2612288962798071048, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142866783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306363 + ... + 310070.

It is an arithmetic number, because the mean of its divisors is an integer number (104177346).

Almost surely, 2^1142866782 is an apocalyptic number.

1142866782 is an abundant number, since it is smaller than the sum of its proper divisors (1357389522).

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

1142866782 is a wasteful number, since it uses less digits than its factorization.

1142866782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616544 (or 616541 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1142866782 is about 33806.3127536855. The cubic root of 1142866782 is about 1045.5188565220.

It can be divided in two parts, 11428 and 66782, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 1142866782 in words is "one billion, one hundred forty-two million, eight hundred sixty-six thousand, seven hundred eighty-two".