261376382 has 8 divisors (see below), whose sum is σ = 392246400. Its totient is φ = 130627584.

The previous prime is 261376363. The next prime is 261376417. The reversal of 261376382 is 283673162.

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

It is a super-2 number, since 2×261376382² = 136635226134819848, which contains 22 as substring.

It is a congruent number.

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, 24707 + ... + 33662.

It is an arithmetic number, because the mean of its divisors is an integer number (49030800).

Almost surely, 2^261376382 is an apocalyptic number.

261376382 is a deficient number, since it is larger than the sum of its proper divisors (130870018).

261376382 is a wasteful number, since it uses less digits than its factorization.

261376382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60610.

The product of its digits is 72576, while the sum is 38.

The square root of 261376382 is about 16167.1389553007. The cubic root of 261376382 is about 639.3747001340.

The spelling of 261376382 in words is "two hundred sixty-one million, three hundred seventy-six thousand, three hundred eighty-two".