261303346 has 16 divisors (see below), whose sum is σ = 401940000. Its totient is φ = 127336608.

The previous prime is 261303337. The next prime is 261303431. The reversal of 261303346 is 643303162.

261303346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39870 + ... + 45958.

It is an arithmetic number, because the mean of its divisors is an integer number (25121250).

Almost surely, 2^261303346 is an apocalyptic number.

261303346 is a deficient number, since it is larger than the sum of its proper divisors (140636654).

261303346 is a wasteful number, since it uses less digits than its factorization.

261303346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 261303346 is about 16164.8800181133. The cubic root of 261303346 is about 639.3151414235.

The spelling of 261303346 in words is "two hundred sixty-one million, three hundred three thousand, three hundred forty-six".