261713432 has 16 divisors (see below), whose sum is σ = 503975760. Its totient is φ = 127319904.

The previous prime is 261713399. The next prime is 261713449. The reversal of 261713432 is 234317162.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 261713395 and 261713404.

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, 441788 + ... + 442379.

It is an arithmetic number, because the mean of its divisors is an integer number (31498485).

Almost surely, 2^261713432 is an apocalyptic number.

It is an amenable number.

261713432 is a deficient number, since it is larger than the sum of its proper divisors (242262328).

261713432 is a wasteful number, since it uses less digits than its factorization.

261713432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884210 (or 884206 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 261713432 is about 16177.5595192847. The cubic root of 261713432 is about 639.6494108485.

The spelling of 261713432 in words is "two hundred sixty-one million, seven hundred thirteen thousand, four hundred thirty-two".