1440043198 has 16 divisors (see below), whose sum is σ = 2437691760. Its totient is φ = 631993600.

The previous prime is 1440043183. The next prime is 1440043207. The reversal of 1440043198 is 8913400441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127923 + ... + 1129198.

It is an arithmetic number, because the mean of its divisors is an integer number (152355735).

Almost surely, 2^1440043198 is an apocalyptic number.

1440043198 is a deficient number, since it is larger than the sum of its proper divisors (997648562).

1440043198 is a wasteful number, since it uses less digits than its factorization.

1440043198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257163.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1440043198 is about 37947.9011013785. The cubic root of 1440043198 is about 1129.2545264539.

The spelling of 1440043198 in words is "one billion, four hundred forty million, forty-three thousand, one hundred ninety-eight".