1059855440 has 40 divisors (see below), whose sum is σ = 2816188800. Its totient is φ = 363378816.

The previous prime is 1059855403. The next prime is 1059855457. The reversal of 1059855440 is 445589501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1059855440² = 2246587107395187200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945740 + ... + 946859.

It is an arithmetic number, because the mean of its divisors is an integer number (70404720).

Almost surely, 2^1059855440 is an apocalyptic number.

1059855440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1059855440 is an abundant number, since it is smaller than the sum of its proper divisors (1756333360).

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

1059855440 is a wasteful number, since it uses less digits than its factorization.

1059855440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892619 (or 1892613 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 1059855440 is about 32555.4210539504. The cubic root of 1059855440 is about 1019.5664696139.

The spelling of 1059855440 in words is "one billion, fifty-nine million, eight hundred fifty-five thousand, four hundred forty".