261041034 has 8 divisors (see below), whose sum is σ = 522082080. Its totient is φ = 87013676.

The previous prime is 261041017. The next prime is 261041041. The reversal of 261041034 is 430140162.

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

261041034 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 261041034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21753414 + ... + 21753425.

It is an arithmetic number, because the mean of its divisors is an integer number (65260260).

Almost surely, 2^261041034 is an apocalyptic number.

261041034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261041034 is a wasteful number, since it uses less digits than its factorization.

261041034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43506844.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 261041034 is about 16156.7643419096. The cubic root of 261041034 is about 639.1011421476.

Adding to 261041034 its reverse (430140162), we get a palindrome (691181196).

The spelling of 261041034 in words is "two hundred sixty-one million, forty-one thousand, thirty-four".