1142795628 has 120 divisors (see below), whose sum is σ = 3237234000. Its totient is φ = 349453440.

The previous prime is 1142795627. The next prime is 1142795639. The reversal of 1142795628 is 8265972411.

1142795628 is a `hidden beast` number, since 1 + 14 + 2 + 7 + 9 + 5 + 628 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142795627) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 761623 + ... + 763121.

It is an arithmetic number, because the mean of its divisors is an integer number (26976950).

Almost surely, 2^1142795628 is an apocalyptic number.

1142795628 is a gapful number since it is divisible by the number (18) 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 1142795628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618617000).

1142795628 is an abundant number, since it is smaller than the sum of its proper divisors (2094438372).

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

1142795628 is a wasteful number, since it uses less digits than its factorization.

1142795628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1698 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 1142795628 is about 33805.2603598907. The cubic root of 1142795628 is about 1045.4971583405.

The spelling of 1142795628 in words is "one billion, one hundred forty-two million, seven hundred ninety-five thousand, six hundred twenty-eight".