261079604 has 12 divisors (see below), whose sum is σ = 459916128. Its totient is φ = 129675000.

The previous prime is 261079583. The next prime is 261079633. The reversal of 261079604 is 406970162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215522 + ... + 216729.

It is an arithmetic number, because the mean of its divisors is an integer number (38326344).

Almost surely, 2^261079604 is an apocalyptic number.

It is an amenable number.

261079604 is a deficient number, since it is larger than the sum of its proper divisors (198836524).

261079604 is a wasteful number, since it uses less digits than its factorization.

261079604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432406 (or 432404 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 261079604 is about 16157.9579155288. The cubic root of 261079604 is about 639.1326172976.

The spelling of 261079604 in words is "two hundred sixty-one million, seventy-nine thousand, six hundred four".