261032048 has 20 divisors (see below), whose sum is σ = 514323480. Its totient is φ = 128303424.

The previous prime is 261032047. The next prime is 261032063. The reversal of 261032048 is 840230162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261032047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137315 + ... + 139202.

It is an arithmetic number, because the mean of its divisors is an integer number (25716174).

Almost surely, 2^261032048 is an apocalyptic number.

It is an amenable number.

261032048 is a deficient number, since it is larger than the sum of its proper divisors (253291432).

261032048 is a wasteful number, since it uses less digits than its factorization.

261032048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276584 (or 276578 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 261032048 is about 16156.4862516576. The cubic root of 261032048 is about 639.0938086534.

The spelling of 261032048 in words is "two hundred sixty-one million, thirty-two thousand, forty-eight".