260346520 has 32 divisors (see below), whose sum is σ = 669463200. Its totient is φ = 89261568.

The previous prime is 260346509. The next prime is 260346577. The reversal of 260346520 is 25643062.

It is a happy number.

It is a super-2 number, since 2×260346520² = 135560620952220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 464625 + ... + 465184.

It is an arithmetic number, because the mean of its divisors is an integer number (20920725).

Almost surely, 2^260346520 is an apocalyptic number.

260346520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260346520 is an abundant number, since it is smaller than the sum of its proper divisors (409116680).

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

260346520 is a wasteful number, since it uses less digits than its factorization.

260346520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929827 (or 929823 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 260346520 is about 16135.2570478440. The cubic root of 260346520 is about 638.5338508565.

Adding to 260346520 its reverse (25643062), we get a palindrome (285989582).

The spelling of 260346520 in words is "two hundred sixty million, three hundred forty-six thousand, five hundred twenty".