1144345842 has 96 divisors (see below), whose sum is σ = 2691786240. Its totient is φ = 350542080.

The previous prime is 1144345831. The next prime is 1144345859. The reversal of 1144345842 is 2485434411.

1144345842 is a `hidden beast` number, since 1 + 1 + 44 + 34 + 584 + 2 = 666.

It is a super-2 number, since 2×1144345842² = 2619054812205377928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144345797 and 1144345806.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 887134 + ... + 888422.

It is an arithmetic number, because the mean of its divisors is an integer number (28039440).

Almost surely, 2^1144345842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144345842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345893120).

1144345842 is an abundant number, since it is smaller than the sum of its proper divisors (1547440398).

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

1144345842 is a wasteful number, since it uses less digits than its factorization.

1144345842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1405 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 1144345842 is about 33828.1811807848. The cubic root of 1144345842 is about 1045.9696872838.

The spelling of 1144345842 in words is "one billion, one hundred forty-four million, three hundred forty-five thousand, eight hundred forty-two".