1439041568 has 24 divisors (see below), whose sum is σ = 2999767932. Its totient is φ = 677195776.

The previous prime is 1439041547. The next prime is 1439041573. The reversal of 1439041568 is 8651409341.

It can be written as a sum of positive squares in 2 ways, for example, as 1125468304 + 313573264 = 33548^2 + 17708^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322105 + ... + 1323192.

Almost surely, 2^1439041568 is an apocalyptic number.

It is an amenable number.

1439041568 is an abundant number, since it is smaller than the sum of its proper divisors (1560726364).

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

1439041568 is a wasteful number, since it uses less digits than its factorization.

1439041568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645324 (or 2645316 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1439041568 is about 37934.7013695904. The cubic root of 1439041568 is about 1128.9926459860.

The spelling of 1439041568 in words is "one billion, four hundred thirty-nine million, forty-one thousand, five hundred sixty-eight".