261456470 has 16 divisors (see below), whose sum is σ = 513405648. Its totient is φ = 95075040.

The previous prime is 261456463. The next prime is 261456487. The reversal of 261456470 is 74654162.

261456470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 261456470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188329 + ... + 1188548.

It is an arithmetic number, because the mean of its divisors is an integer number (32087853).

Almost surely, 2^261456470 is an apocalyptic number.

261456470 is a deficient number, since it is larger than the sum of its proper divisors (251949178).

261456470 is a wasteful number, since it uses less digits than its factorization.

261456470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376895.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 261456470 is about 16169.6156416904. The cubic root of 261456470 is about 639.4399967909.

The spelling of 261456470 in words is "two hundred sixty-one million, four hundred fifty-six thousand, four hundred seventy".