261133362 has 64 divisors (see below), whose sum is σ = 702224640. Its totient is φ = 70219008.

The previous prime is 261133361. The next prime is 261133373. The reversal of 261133362 is 263331162.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (261133361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13893 + ... + 26744.

It is an arithmetic number, because the mean of its divisors is an integer number (10972260).

Almost surely, 2^261133362 is an apocalyptic number.

261133362 is an abundant number, since it is smaller than the sum of its proper divisors (441091278).

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

261133362 is a wasteful number, since it uses less digits than its factorization.

261133362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40672 (or 40666 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 261133362 is about 16159.6213445736. The cubic root of 261133362 is about 639.1764814841.

The spelling of 261133362 in words is "two hundred sixty-one million, one hundred thirty-three thousand, three hundred sixty-two".