1440863382 has 32 divisors (see below), whose sum is σ = 3436595712. Its totient is φ = 393776064.

The previous prime is 1440863377. The next prime is 1440863399. The reversal of 1440863382 is 2833680441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440863382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744823 + ... + 746754.

It is an arithmetic number, because the mean of its divisors is an integer number (107393616).

Almost surely, 2^1440863382 is an apocalyptic number.

1440863382 is an abundant number, since it is smaller than the sum of its proper divisors (1995732330).

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

1440863382 is a wasteful number, since it uses less digits than its factorization.

1440863382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491612.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 1440863382 is about 37958.7062740552. The cubic root of 1440863382 is about 1129.4688766695.

The spelling of 1440863382 in words is "one billion, four hundred forty million, eight hundred sixty-three thousand, three hundred eighty-two".