261480224 has 24 divisors (see below), whose sum is σ = 515153520. Its totient is φ = 130647616.

The previous prime is 261480143. The next prime is 261480227. The reversal of 261480224 is 422084162.

It is not an unprimeable number, because it can be changed into a prime (261480227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77027 + ... + 80349.

It is an arithmetic number, because the mean of its divisors is an integer number (21464730).

Almost surely, 2^261480224 is an apocalyptic number.

It is an amenable number.

261480224 is a deficient number, since it is larger than the sum of its proper divisors (253673296).

261480224 is a wasteful number, since it uses less digits than its factorization.

261480224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792 (or 5784 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 261480224 is about 16170.3501508162. The cubic root of 261480224 is about 639.4593611332.

The spelling of 261480224 in words is "two hundred sixty-one million, four hundred eighty thousand, two hundred twenty-four".