261411282 has 48 divisors (see below), whose sum is σ = 637827840. Its totient is φ = 76658400.

The previous prime is 261411281. The next prime is 261411289. The reversal of 261411282 is 282114162.

It is not an unprimeable number, because it can be changed into a prime (261411281) 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, 15157 + ... + 27432.

It is an arithmetic number, because the mean of its divisors is an integer number (13288080).

Almost surely, 2^261411282 is an apocalyptic number.

261411282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261411282 is an abundant number, since it is smaller than the sum of its proper divisors (376416558).

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

261411282 is a wasteful number, since it uses less digits than its factorization.

261411282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42639 (or 42636 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 261411282 is about 16168.2182691848. The cubic root of 261411282 is about 639.4031561403.

The spelling of 261411282 in words is "two hundred sixty-one million, four hundred eleven thousand, two hundred eighty-two".