260642430 has 96 divisors (see below), whose sum is σ = 720252000. Its totient is φ = 65270016.

The previous prime is 260642407. The next prime is 260642483. The reversal of 260642430 is 34246062.

260642430 is a `hidden beast` number, since 2 + 606 + 4 + 24 + 30 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 260642394 and 260642403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95221 + ... + 97919.

It is an arithmetic number, because the mean of its divisors is an integer number (7502625).

Almost surely, 2^260642430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260642430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360126000).

260642430 is an abundant number, since it is smaller than the sum of its proper divisors (459609570).

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

260642430 is a wasteful number, since it uses less digits than its factorization.

260642430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 260642430 is about 16144.4241148453. The cubic root of 260642430 is about 638.7756785696.

Adding to 260642430 its reverse (34246062), we get a palindrome (294888492).

The spelling of 260642430 in words is "two hundred sixty million, six hundred forty-two thousand, four hundred thirty".