260521290 has 48 divisors (see below), whose sum is σ = 678233088. Its totient is φ = 69382368.

The previous prime is 260521249. The next prime is 260521291. The reversal of 260521290 is 92125062.

It is not an unprimeable number, because it can be changed into a prime (260521291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96499 + ... + 99161.

It is an arithmetic number, because the mean of its divisors is an integer number (14129856).

Almost surely, 2^260521290 is an apocalyptic number.

260521290 is an abundant number, since it is smaller than the sum of its proper divisors (417711798).

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

260521290 is a wasteful number, since it uses less digits than its factorization.

260521290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763 (or 3760 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 260521290 is about 16140.6719190993. The cubic root of 260521290 is about 638.6767009817.

The spelling of 260521290 in words is "two hundred sixty million, five hundred twenty-one thousand, two hundred ninety".