1059439444 has 24 divisors (see below), whose sum is σ = 2135060928. Its totient is φ = 450577920.

The previous prime is 1059439441. The next prime is 1059439457. The reversal of 1059439444 is 4449349501.

It is a super-2 number, since 2×1059439444² = 2244823871006058272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1059439444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059439441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140749 + ... + 148084.

It is an arithmetic number, because the mean of its divisors is an integer number (88960872).

Almost surely, 2^1059439444 is an apocalyptic number.

1059439444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1059439444 is an abundant number, since it is smaller than the sum of its proper divisors (1075621484).

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

1059439444 is a wasteful number, since it uses less digits than its factorization.

1059439444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288975 (or 288973 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 1059439444 is about 32549.0313834375. The cubic root of 1059439444 is about 1019.4330579992.

The spelling of 1059439444 in words is "one billion, fifty-nine million, four hundred thirty-nine thousand, four hundred forty-four".