261601362 has 24 divisors (see below), whose sum is σ = 618330960. Its totient is φ = 79273080.

The previous prime is 261601313. The next prime is 261601369. The reversal of 261601362 is 263106162.

261601362 is a `hidden beast` number, since 26 + 1 + 601 + 36 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (261601369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660412 + ... + 660807.

It is an arithmetic number, because the mean of its divisors is an integer number (25763790).

Almost surely, 2^261601362 is an apocalyptic number.

261601362 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261601362 is an abundant number, since it is smaller than the sum of its proper divisors (356729598).

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

261601362 is a wasteful number, since it uses less digits than its factorization.

261601362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321238 (or 1321235 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 261601362 is about 16174.0953997434. The cubic root of 261601362 is about 639.5580950103.

The spelling of 261601362 in words is "two hundred sixty-one million, six hundred one thousand, three hundred sixty-two".