260081428 has 6 divisors (see below), whose sum is σ = 455142506. Its totient is φ = 130040712.

The previous prime is 260081417. The next prime is 260081461. The reversal of 260081428 is 824180062.

It can be written as a sum of positive squares in only one way, i.e., 198584464 + 61496964 = 14092^2 + 7842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 260081428.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 32510175 + ... + 32510182.

Almost surely, 2^260081428 is an apocalyptic number.

It is an amenable number.

260081428 is a deficient number, since it is larger than the sum of its proper divisors (195061078).

260081428 is a wasteful number, since it uses less digits than its factorization.

260081428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65020361 (or 65020359 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 260081428 is about 16127.0402740242. The cubic root of 260081428 is about 638.3170530032.

The spelling of 260081428 in words is "two hundred sixty million, eighty-one thousand, four hundred twenty-eight".