261167438 has 32 divisors (see below), whose sum is σ = 477149184. Its totient is φ = 104778432.

The previous prime is 261167383. The next prime is 261167441. The reversal of 261167438 is 834761162.

261167438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6506 + ... + 23762.

It is an arithmetic number, because the mean of its divisors is an integer number (14910912).

Almost surely, 2^261167438 is an apocalyptic number.

261167438 is a deficient number, since it is larger than the sum of its proper divisors (215981746).

261167438 is a wasteful number, since it uses less digits than its factorization.

261167438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17336.

The product of its digits is 48384, while the sum is 38.

The square root of 261167438 is about 16160.6756665679. The cubic root of 261167438 is about 639.2042828985.

The spelling of 261167438 in words is "two hundred sixty-one million, one hundred sixty-seven thousand, four hundred thirty-eight".