261752016 has 20 divisors (see below), whose sum is σ = 676192832. Its totient is φ = 87250656.

The previous prime is 261751993. The next prime is 261752027. The reversal of 261752016 is 610257162.

It is a congruent number.

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, 2726536 + ... + 2726631.

Almost surely, 2^261752016 is an apocalyptic number.

It is an amenable number.

261752016 is an abundant number, since it is smaller than the sum of its proper divisors (414440816).

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

261752016 is a wasteful number, since it uses less digits than its factorization.

261752016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453178 (or 5453172 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 261752016 is about 16178.7519914238. The cubic root of 261752016 is about 639.6808434730.

The spelling of 261752016 in words is "two hundred sixty-one million, seven hundred fifty-two thousand, sixteen".