260661534 has 16 divisors (see below), whose sum is σ = 595797888. Its totient is φ = 74474712.

The previous prime is 260661517. The next prime is 260661563. The reversal of 260661534 is 435166062.

260661534 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 260661495 and 260661504.

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, 3103072 + ... + 3103155.

It is an arithmetic number, because the mean of its divisors is an integer number (37237368).

Almost surely, 2^260661534 is an apocalyptic number.

260661534 is an abundant number, since it is smaller than the sum of its proper divisors (335136354).

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

260661534 is a wasteful number, since it uses less digits than its factorization.

260661534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206239.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 260661534 is about 16145.0157633865. The cubic root of 260661534 is about 638.7912847168.

The spelling of 260661534 in words is "two hundred sixty million, six hundred sixty-one thousand, five hundred thirty-four".