261748468 has 12 divisors (see below), whose sum is σ = 463579200. Its totient is φ = 129297272.

The previous prime is 261748433. The next prime is 261748517. The reversal of 261748468 is 864847162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393868 + ... + 394531.

It is an arithmetic number, because the mean of its divisors is an integer number (38631600).

Almost surely, 2^261748468 is an apocalyptic number.

It is an amenable number.

261748468 is a deficient number, since it is larger than the sum of its proper divisors (201830732).

261748468 is a wasteful number, since it uses less digits than its factorization.

261748468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788486 (or 788484 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 261748468 is about 16178.6423410619. The cubic root of 261748468 is about 639.6779532082.

The spelling of 261748468 in words is "two hundred sixty-one million, seven hundred forty-eight thousand, four hundred sixty-eight".