260390 has 16 divisors (see below), whose sum is σ = 505008. Its totient is φ = 96096.

The previous prime is 260387. The next prime is 260399. The reversal of 260390 is 93062.

It is a happy number.

260390 is a modest number, since divided by 390 gives 260 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260390.

It is not an unprimeable number, because it can be changed into a prime (260399) by changing a digit.

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, 872 + ... + 1131.

It is an arithmetic number, because the mean of its divisors is an integer number (31563).

2²⁶⁰³⁹⁰ is an apocalyptic number.

260390 is a deficient number, since it is larger than the sum of its proper divisors (244618).

260390 is a wasteful number, since it uses less digits than its factorization.

260390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 260390 is about 510.2842345203. The cubic root of 260390 is about 63.8569395671.

It can be divided in two parts, 2603 and 90, that multiplied together give a triangular number (234270 = T₆₈₄).

The spelling of 260390 in words is "two hundred sixty thousand, three hundred ninety".