261842032 has 10 divisors (see below), whose sum is σ = 507318968. Its totient is φ = 130921008.

The previous prime is 261841991. The next prime is 261842033. The reversal of 261842032 is 230248162.

It is a super-2 number, since 2×261842032² = 137122499443778048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261842033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8182548 + ... + 8182579.

Almost surely, 2^261842032 is an apocalyptic number.

It is an amenable number.

261842032 is a deficient number, since it is larger than the sum of its proper divisors (245476936).

261842032 is a wasteful number, since it uses less digits than its factorization.

261842032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365135 (or 16365129 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 261842032 is about 16181.5336726776. The cubic root of 261842032 is about 639.7541633939.

The spelling of 261842032 in words is "two hundred sixty-one million, eight hundred forty-two thousand, thirty-two".