1026605856 has 24 divisors (see below), whose sum is σ = 2694840624. Its totient is φ = 342201920.

The previous prime is 1026605849. The next prime is 1026605857. The reversal of 1026605856 is 6585066201.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1026605857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5346810 + ... + 5347001.

It is an arithmetic number, because the mean of its divisors is an integer number (112285026).

Almost surely, 2^1026605856 is an apocalyptic number.

1026605856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1026605856 is an abundant number, since it is smaller than the sum of its proper divisors (1668234768).

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

1026605856 is a wasteful number, since it uses less digits than its factorization.

1026605856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10693824 (or 10693816 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1026605856 is about 32040.6906292608. The cubic root of 1026605856 is about 1008.7911086067.

It can be divided in two parts, 1026605 and 856, that added together give a triangular number (1027461 = T₁₄₃₃).

The spelling of 1026605856 in words is "one billion, twenty-six million, six hundred five thousand, eight hundred fifty-six".