261236332 has 12 divisors (see below), whose sum is σ = 522472720. Its totient is φ = 111958416.

The previous prime is 261236303. The next prime is 261236341. The reversal of 261236332 is 233632162.

261236332 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

261236332 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 9329869 = 261236332 / (2 + 6 + 1 + 2 + 3 + 6 + 3 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 261236332.

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, 4664907 + ... + 4664962.

Almost surely, 2^261236332 is an apocalyptic number.

It is an amenable number.

261236332 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.

261236332 is a wasteful number, since it uses less digits than its factorization.

261236332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329880 (or 9329878 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 261236332 is about 16162.8070581814. The cubic root of 261236332 is about 639.2604837130.

Adding to 261236332 its reverse (233632162), we get a palindrome (494868494).

The spelling of 261236332 in words is "two hundred sixty-one million, two hundred thirty-six thousand, three hundred thirty-two".