261712474 has 8 divisors (see below), whose sum is σ = 394977600. Its totient is φ = 130053276.

The previous prime is 261712459. The next prime is 261712481. The reversal of 261712474 is 474217162.

It is a happy number.

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

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, 401074 + ... + 401725.

It is an arithmetic number, because the mean of its divisors is an integer number (49372200).

Almost surely, 2^261712474 is an apocalyptic number.

261712474 is a deficient number, since it is larger than the sum of its proper divisors (133265126).

261712474 is a wasteful number, since it uses less digits than its factorization.

261712474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802964.

The product of its digits is 18816, while the sum is 34.

The square root of 261712474 is about 16177.5299103417. The cubic root of 261712474 is about 639.6486303703.

The spelling of 261712474 in words is "two hundred sixty-one million, seven hundred twelve thousand, four hundred seventy-four".