261410442 has 16 divisors (see below), whose sum is σ = 523029312. Its totient is φ = 87102080.

The previous prime is 261410419. The next prime is 261410453. The reversal of 261410442 is 244014162.

It is a happy 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, 11083 + ... + 25409.

It is an arithmetic number, because the mean of its divisors is an integer number (32689332).

Almost surely, 2^261410442 is an apocalyptic number.

261410442 is an abundant number, since it is smaller than the sum of its proper divisors (261618870).

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

261410442 is a wasteful number, since it uses less digits than its factorization.

261410442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17373.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 261410442 is about 16168.1922922756. The cubic root of 261410442 is about 639.4024712691.

The spelling of 261410442 in words is "two hundred sixty-one million, four hundred ten thousand, four hundred forty-two".