261168434 has 8 divisors (see below), whose sum is σ = 393804288. Its totient is φ = 129900340.

The previous prime is 261168431. The next prime is 261168437. The reversal of 261168434 is 434861162.

261168434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (261168431) and next prime (261168437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 261168394 and 261168403.

It is not an unprimeable number, because it can be changed into a prime (261168431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341462 + ... + 342225.

It is an arithmetic number, because the mean of its divisors is an integer number (49225536).

Almost surely, 2^261168434 is an apocalyptic number.

261168434 is a deficient number, since it is larger than the sum of its proper divisors (132635854).

261168434 is a wasteful number, since it uses less digits than its factorization.

261168434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683880.

The product of its digits is 27648, while the sum is 35.

The square root of 261168434 is about 16160.7064820818. The cubic root of 261168434 is about 639.2050954636.

The spelling of 261168434 in words is "two hundred sixty-one million, one hundred sixty-eight thousand, four hundred thirty-four".