961334280 has 48 divisors (see below), whose sum is σ = 3124337580. Its totient is φ = 256355712.

The previous prime is 961334263. The next prime is 961334281. The reversal of 961334280 is 82433169.

961334280 is a `hidden beast` number, since 9 + 613 + 34 + 2 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 770728644 + 190605636 = 27762^2 + 13806^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (961334281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1334827 + ... + 1335546.

Almost surely, 2^961334280 is an apocalyptic number.

961334280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

961334280 is an abundant number, since it is smaller than the sum of its proper divisors (2163003300).

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

961334280 is a wasteful number, since it uses less digits than its factorization.

961334280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670390 (or 2670383 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 961334280 is about 31005.3911441220. The cubic root of 961334280 is about 986.9416483582.

It can be divided in two parts, 961 and 334280, that added together give a square (335241 = 579²).

The spelling of 961334280 in words is "nine hundred sixty-one million, three hundred thirty-four thousand, two hundred eighty".