261572262 has 16 divisors (see below), whose sum is σ = 597879552. Its totient is φ = 74734920.

The previous prime is 261572243. The next prime is 261572263. The reversal of 261572262 is 262275162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261572263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113914 + ... + 3113997.

It is an arithmetic number, because the mean of its divisors is an integer number (37367472).

Almost surely, 2^261572262 is an apocalyptic number.

261572262 is an abundant number, since it is smaller than the sum of its proper divisors (336307290).

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

261572262 is a wasteful number, since it uses less digits than its factorization.

261572262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227923.

The product of its digits is 20160, while the sum is 33.

The square root of 261572262 is about 16173.1957880933. The cubic root of 261572262 is about 639.5343797532.

The spelling of 261572262 in words is "two hundred sixty-one million, five hundred seventy-two thousand, two hundred sixty-two".