260028240 has 40 divisors (see below), whose sum is σ = 806088288. Its totient is φ = 69340800.

The previous prime is 260028221. The next prime is 260028247. The reversal of 260028240 is 42820062.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×260028240² = 135229371194995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 260028240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260028247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541486 + ... + 541965.

Almost surely, 2^260028240 is an apocalyptic number.

260028240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260028240 is an abundant number, since it is smaller than the sum of its proper divisors (546060048).

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

260028240 is a wasteful number, since it uses less digits than its factorization.

260028240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083467 (or 1083461 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 260028240 is about 16125.3911580464. The cubic root of 260028240 is about 638.2735369881.

The spelling of 260028240 in words is "two hundred sixty million, twenty-eight thousand, two hundred forty".