261041372 has 6 divisors (see below), whose sum is σ = 456822408. Its totient is φ = 130520684.

The previous prime is 261041353. The next prime is 261041423. The reversal of 261041372 is 273140162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32630168 + ... + 32630175.

It is an arithmetic number, because the mean of its divisors is an integer number (76137068).

Almost surely, 2^261041372 is an apocalyptic number.

It is an amenable number.

261041372 is a deficient number, since it is larger than the sum of its proper divisors (195781036).

261041372 is a wasteful number, since it uses less digits than its factorization.

261041372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65260347 (or 65260345 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 261041372 is about 16156.7748019213. The cubic root of 261041372 is about 639.1014179869.

The spelling of 261041372 in words is "two hundred sixty-one million, forty-one thousand, three hundred seventy-two".