260428 has 24 divisors (see below), whose sum is σ = 532224. Its totient is φ = 109200.

The previous prime is 260419. The next prime is 260441. The reversal of 260428 is 824062.

260428 is nontrivially palindromic in base 3.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 260399 and 260408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (22176).

2²⁶⁰⁴²⁸ is an apocalyptic number.

260428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

260428 is an abundant number, since it is smaller than the sum of its proper divisors (271796).

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

260428 is a wasteful number, since it uses less digits than its factorization.

260428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 260428 is about 510.3214673125. The cubic root of 260428 is about 63.8600457356.

The spelling of 260428 in words is "two hundred sixty thousand, four hundred twenty-eight".