1142589780 has 96 divisors (see below), whose sum is σ = 3613102080. Its totient is φ = 299687040.

The previous prime is 1142589779. The next prime is 1142589797. The reversal of 1142589780 is 879852411.

It is a super-2 number, since 2×1142589780² = 2611022810720896800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 in 31 ways as a sum of consecutive naturals, for example, 15597 + ... + 50283.

It is an arithmetic number, because the mean of its divisors is an integer number (37636480).

Almost surely, 2^1142589780 is an apocalyptic number.

1142589780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142589780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806551040).

1142589780 is an abundant number, since it is smaller than the sum of its proper divisors (2470512300).

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

1142589780 is a wasteful number, since it uses less digits than its factorization.

1142589780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34766 (or 34758 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 1142589780 is about 33802.2156078562. The cubic root of 1142589780 is about 1045.4343805883.

The spelling of 1142589780 in words is "one billion, one hundred forty-two million, five hundred eighty-nine thousand, seven hundred eighty".