261423932 has 24 divisors (see below), whose sum is σ = 570380160. Its totient is φ = 101853360.

The previous prime is 261423889. The next prime is 261423947. The reversal of 261423932 is 239324162.

261423932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424082 + ... + 424697.

It is an arithmetic number, because the mean of its divisors is an integer number (23765840).

Almost surely, 2^261423932 is an apocalyptic number.

261423932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

261423932 is an abundant number, since it is smaller than the sum of its proper divisors (308956228).

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

261423932 is a wasteful number, since it uses less digits than its factorization.

261423932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848801 (or 848799 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 261423932 is about 16168.6094640201. The cubic root of 261423932 is about 639.4134697980.

The spelling of 261423932 in words is "two hundred sixty-one million, four hundred twenty-three thousand, nine hundred thirty-two".