261234470 has 32 divisors (see below), whose sum is σ = 539336448. Its totient is φ = 89242848.

The previous prime is 261234451. The next prime is 261234499. The reversal of 261234470 is 74432162.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13217 + ... + 26403.

It is an arithmetic number, because the mean of its divisors is an integer number (16854264).

Almost surely, 2^261234470 is an apocalyptic number.

261234470 is an abundant number, since it is smaller than the sum of its proper divisors (278101978).

261234470 is a wasteful number, since it uses less digits than its factorization.

261234470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13484.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 261234470 is about 16162.7494566983. The cubic root of 261234470 is about 639.2589649020.

The spelling of 261234470 in words is "two hundred sixty-one million, two hundred thirty-four thousand, four hundred seventy".