3205890538 has 16 divisors (see below), whose sum is σ = 4884165000. Its totient is φ = 1577993472.

The previous prime is 3205890517. The next prime is 3205890599. The reversal of 3205890538 is 8350985023.

3205890538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2652559009 + 553331529 = 51503^2 + 23523^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3205890494 and 3205890503.

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, 1438 + ... + 80086.

Almost surely, 2^3205890538 is an apocalyptic number.

3205890538 is a deficient number, since it is larger than the sum of its proper divisors (1678274462).

3205890538 is a wasteful number, since it uses less digits than its factorization.

3205890538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78969.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 3205890538 is about 56620.5840485596. The cubic root of 3205890538 is about 1474.5162505185.

The spelling of 3205890538 in words is "three billion, two hundred five million, eight hundred ninety thousand, five hundred thirty-eight".