1144981794 has 32 divisors (see below), whose sum is σ = 2510012160. Its totient is φ = 345315600.

The previous prime is 1144981793. The next prime is 1144981813. The reversal of 1144981794 is 4971894411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1144981793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27184 + ... + 55035.

It is an arithmetic number, because the mean of its divisors is an integer number (78437880).

Almost surely, 2^1144981794 is an apocalyptic number.

1144981794 is an abundant number, since it is smaller than the sum of its proper divisors (1365030366).

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

1144981794 is a wasteful number, since it uses less digits than its factorization.

1144981794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82446.

The product of its digits is 290304, while the sum is 48.

The square root of 1144981794 is about 33837.5796120231. The cubic root of 1144981794 is about 1046.1634117407.

The spelling of 1144981794 in words is "one billion, one hundred forty-four million, nine hundred eighty-one thousand, seven hundred ninety-four".