261579348 has 48 divisors (see below), whose sum is σ = 679056000. Its totient is φ = 87079104.

The previous prime is 261579347. The next prime is 261579361. The reversal of 261579348 is 843975162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261579347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138273 + ... + 140151.

It is an arithmetic number, because the mean of its divisors is an integer number (14147000).

Almost surely, 2^261579348 is an apocalyptic number.

It is an amenable number.

261579348 is an abundant number, since it is smaller than the sum of its proper divisors (417476652).

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

261579348 is a wasteful number, since it uses less digits than its factorization.

261579348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181 (or 3173 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 261579348 is about 16173.4148527761. The cubic root of 261579348 is about 639.5401547025.

The spelling of 261579348 in words is "two hundred sixty-one million, five hundred seventy-nine thousand, three hundred forty-eight".