261435032 has 8 divisors (see below), whose sum is σ = 490190700. Its totient is φ = 130717512.

The previous prime is 261435023. The next prime is 261435037. The reversal of 261435032 is 230534162.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 261434992 and 261435010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261435037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16339682 + ... + 16339697.

Almost surely, 2^261435032 is an apocalyptic number.

It is an amenable number.

261435032 is a deficient number, since it is larger than the sum of its proper divisors (228755668).

261435032 is a wasteful number, since it uses less digits than its factorization.

261435032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32679385 (or 32679381 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 261435032 is about 16168.9527180953. The cubic root of 261435032 is about 639.4225194529.

Adding to 261435032 its reverse (230534162), we get a palindrome (491969194).

The spelling of 261435032 in words is "two hundred sixty-one million, four hundred thirty-five thousand, thirty-two".