261904996 has 12 divisors (see below), whose sum is σ = 458777200. Its totient is φ = 130825800.

The previous prime is 261904961. The next prime is 261904997. The reversal of 261904996 is 699409162.

It is not an unprimeable number, because it can be changed into a prime (261904997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26946 + ... + 35353.

Almost surely, 2^261904996 is an apocalyptic number.

It is an amenable number.

261904996 is a deficient number, since it is larger than the sum of its proper divisors (196872204).

261904996 is a wasteful number, since it uses less digits than its factorization.

261904996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63354 (or 63352 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 261904996 is about 16183.4791067928. The cubic root of 261904996 is about 639.8054389060.

The spelling of 261904996 in words is "two hundred sixty-one million, nine hundred four thousand, nine hundred ninety-six".