261712074 has 32 divisors (see below), whose sum is σ = 575688960. Its totient is φ = 78812352.

The previous prime is 261712067. The next prime is 261712103. The reversal of 261712074 is 470217162.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32029 + ... + 39360.

It is an arithmetic number, because the mean of its divisors is an integer number (17990280).

Almost surely, 2^261712074 is an apocalyptic number.

261712074 is an abundant number, since it is smaller than the sum of its proper divisors (313976886).

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

261712074 is a wasteful number, since it uses less digits than its factorization.

261712074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71454.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 261712074 is about 16177.5175475102. The cubic root of 261712074 is about 639.6483044916.

The spelling of 261712074 in words is "two hundred sixty-one million, seven hundred twelve thousand, seventy-four".