261170672 has 40 divisors (see below), whose sum is σ = 579236736. Its totient is φ = 111750336.

The previous prime is 261170659. The next prime is 261170683. The reversal of 261170672 is 276071162.

261170672 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, 86663 + ... + 89625.

Almost surely, 2^261170672 is an apocalyptic number.

It is an amenable number.

261170672 is an abundant number, since it is smaller than the sum of its proper divisors (318066064).

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

261170672 is a wasteful number, since it uses less digits than its factorization.

261170672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 261170672 is about 16160.7757239558. The cubic root of 261170672 is about 639.2069212801.

The spelling of 261170672 in words is "two hundred sixty-one million, one hundred seventy thousand, six hundred seventy-two".