261233046 has 16 divisors (see below), whose sum is σ = 580518000. Its totient is φ = 87077664.

The previous prime is 261233039. The next prime is 261233053. The reversal of 261233046 is 640332162.

261233046 is a `hidden beast` number, since 2 + 612 + 3 + 3 + 0 + 46 = 666.

261233046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (261233039) and next prime (261233053).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 2418771 + ... + 2418878.

It is an arithmetic number, because the mean of its divisors is an integer number (36282375).

Almost surely, 2^261233046 is an apocalyptic number.

261233046 is an abundant number, since it is smaller than the sum of its proper divisors (319284954).

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

261233046 is a wasteful number, since it uses less digits than its factorization.

261233046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837660 (or 4837654 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 261233046 is about 16162.7054047273. The cubic root of 261233046 is about 639.2578033574.

The spelling of 261233046 in words is "two hundred sixty-one million, two hundred thirty-three thousand, forty-six".