261474 has 8 divisors (see below), whose sum is σ = 522960. Its totient is φ = 87156.

The previous prime is 261467. The next prime is 261509. The reversal of 261474 is 474162.

It is a sphenic number, since it is the product of 3 distinct primes.

261474 is an admirable number.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 261474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21784 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (65370).

2²⁶¹⁴⁷⁴ is an apocalyptic number.

261474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

261474 is a wasteful number, since it uses less digits than its factorization.

261474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43584.

The product of its digits is 1344, while the sum is 24.

The square root of 261474 is about 511.3452845192. The cubic root of 261474 is about 63.9454287420.

The spelling of 261474 in words is "two hundred sixty-one thousand, four hundred seventy-four".