261479084 has 12 divisors (see below), whose sum is σ = 464033808. Its totient is φ = 128898000.

The previous prime is 261479069. The next prime is 261479089. The reversal of 261479084 is 480974162.

It is a super-2 number, since 2×261479084² = 136742622738958112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (261479089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460067 + ... + 460634.

It is an arithmetic number, because the mean of its divisors is an integer number (38669484).

Almost surely, 2^261479084 is an apocalyptic number.

It is an amenable number.

261479084 is a deficient number, since it is larger than the sum of its proper divisors (202554724).

261479084 is a wasteful number, since it uses less digits than its factorization.

261479084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920776 (or 920774 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 261479084 is about 16170.3149010772. The cubic root of 261479084 is about 639.4584318281.

The spelling of 261479084 in words is "two hundred sixty-one million, four hundred seventy-nine thousand, eighty-four".