1144819806 has 96 divisors (see below), whose sum is σ = 2633289120. Its totient is φ = 329764608.

The previous prime is 1144819789. The next prime is 1144819807. The reversal of 1144819806 is 6089184411.

It is a happy number.

It is a super-2 number, since 2×1144819806² = 2621224776419755272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144819807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3069036 + ... + 3069408.

It is an arithmetic number, because the mean of its divisors is an integer number (27430095).

Almost surely, 2^1144819806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144819806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316644560).

1144819806 is an abundant number, since it is smaller than the sum of its proper divisors (1488469314).

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

1144819806 is a wasteful number, since it uses less digits than its factorization.

1144819806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1144819806 is about 33835.1859164391. The cubic root of 1144819806 is about 1046.1140735731.

The spelling of 1144819806 in words is "one billion, one hundred forty-four million, eight hundred nineteen thousand, eight hundred six".