261442362 has 8 divisors (see below), whose sum is σ = 522884736. Its totient is φ = 87147452.

The previous prime is 261442361. The next prime is 261442397. The reversal of 261442362 is 263244162.

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

261442362 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (261442361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21786858 + ... + 21786869.

It is an arithmetic number, because the mean of its divisors is an integer number (65360592).

Almost surely, 2^261442362 is an apocalyptic number.

261442362 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.

261442362 is a wasteful number, since it uses less digits than its factorization.

261442362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43573732.

The product of its digits is 13824, while the sum is 30.

The square root of 261442362 is about 16169.1793854852. The cubic root of 261442362 is about 639.4284953458.

The spelling of 261442362 in words is "two hundred sixty-one million, four hundred forty-two thousand, three hundred sixty-two".