261343302 has 48 divisors (see below), whose sum is σ = 594382320. Its totient is φ = 76457920.

The previous prime is 261343301. The next prime is 261343333. The reversal of 261343302 is 203343162.

261343302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261343301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14848 + ... + 27260.

It is an arithmetic number, because the mean of its divisors is an integer number (12382965).

Almost surely, 2^261343302 is an apocalyptic number.

261343302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 261343302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297191160).

261343302 is an abundant number, since it is smaller than the sum of its proper divisors (333039018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261343302 is a wasteful number, since it uses less digits than its factorization.

261343302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469 (or 12458 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 261343302 is about 16166.1158600327. The cubic root of 261343302 is about 639.3477257414.

Adding to 261343302 its reverse (203343162), we get a palindrome (464686464).

The spelling of 261343302 in words is "two hundred sixty-one million, three hundred forty-three thousand, three hundred two".