1144120398 has 32 divisors (see below), whose sum is σ = 2326423680. Its totient is φ = 375061920.

The previous prime is 1144120391. The next prime is 1144120399. The reversal of 1144120398 is 8930214411.

It is a happy number.

It is a super-2 number, since 2×1144120398² = 2618022970239356808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144120391) 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 15 ways as a sum of consecutive naturals, for example, 82828 + ... + 95648.

It is an arithmetic number, because the mean of its divisors is an integer number (72700740).

Almost surely, 2^1144120398 is an apocalyptic number.

1144120398 is an abundant number, since it is smaller than the sum of its proper divisors (1182303282).

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

1144120398 is a wasteful number, since it uses less digits than its factorization.

1144120398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13072.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1144120398 is about 33824.8488244959. The cubic root of 1144120398 is about 1045.9009950323.

The spelling of 1144120398 in words is "one billion, one hundred forty-four million, one hundred twenty thousand, three hundred ninety-eight".