260765426 has 8 divisors (see below), whose sum is σ = 391596780. Its totient is φ = 130233168.

The previous prime is 260765413. The next prime is 260765429. The reversal of 260765426 is 624567062.

It can be written as a sum of positive squares in 2 ways, for example, as 246333025 + 14432401 = 15695^2 + 3799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×260765426² = 135997214793922952, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 260765426.

It is not an unprimeable number, because it can be changed into a prime (260765429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72581 + ... + 76088.

Almost surely, 2^260765426 is an apocalyptic number.

260765426 is a deficient number, since it is larger than the sum of its proper divisors (130831354).

260765426 is a wasteful number, since it uses less digits than its factorization.

260765426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149548.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 260765426 is about 16148.2329064204. The cubic root of 260765426 is about 638.8761412330.

The spelling of 260765426 in words is "two hundred sixty million, seven hundred sixty-five thousand, four hundred twenty-six".