261602704 has 20 divisors (see below), whose sum is σ = 552933360. Its totient is φ = 118910240.

The previous prime is 261602701. The next prime is 261602711. The reversal of 261602704 is 407206162.

It is a super-2 number, since 2×261602704² = 136871949480223232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (261602701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743014 + ... + 743365.

It is an arithmetic number, because the mean of its divisors is an integer number (27646668).

Almost surely, 2^261602704 is an apocalyptic number.

It is an amenable number.

261602704 is an abundant number, since it is smaller than the sum of its proper divisors (291330656).

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

261602704 is a wasteful number, since it uses less digits than its factorization.

261602704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486398 (or 1486392 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 261602704 is about 16174.1368857816. The cubic root of 261602704 is about 639.5591886406.

Adding to 261602704 its reverse (407206162), we get a palindrome (668808866).

The spelling of 261602704 in words is "two hundred sixty-one million, six hundred two thousand, seven hundred four".