261376032 has 48 divisors (see below), whose sum is σ = 686986272. Its totient is φ = 87014400.

The previous prime is 261376013. The next prime is 261376061. The reversal of 261376032 is 230673162.

It is a tau number, because it is divible by the number of its divisors (48).

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, 114163 + ... + 116429.

It is an arithmetic number, because the mean of its divisors is an integer number (14312214).

Almost surely, 2^261376032 is an apocalyptic number.

It is an amenable number.

261376032 is an abundant number, since it is smaller than the sum of its proper divisors (425610240).

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

261376032 is a wasteful number, since it uses less digits than its factorization.

261376032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481 (or 3473 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 261376032 is about 16167.1281308710. The cubic root of 261376032 is about 639.3744147457.

The spelling of 261376032 in words is "two hundred sixty-one million, three hundred seventy-six thousand, thirty-two".