260739820 has 24 divisors (see below), whose sum is σ = 597331728. Its totient is φ = 94814400.

The previous prime is 260739811. The next prime is 260739827. The reversal of 260739820 is 28937062.

It is a self number, because there is not a number n which added to its sum of digits gives 260739820.

It is not an unprimeable number, because it can be changed into a prime (260739827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592371 + ... + 592810.

It is an arithmetic number, because the mean of its divisors is an integer number (24888822).

Almost surely, 2^260739820 is an apocalyptic number.

260739820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260739820 is an abundant number, since it is smaller than the sum of its proper divisors (336591908).

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

260739820 is a wasteful number, since it uses less digits than its factorization.

260739820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185201 (or 1185199 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 260739820 is about 16147.4400447873. The cubic root of 260739820 is about 638.8552289541.

The spelling of 260739820 in words is "two hundred sixty million, seven hundred thirty-nine thousand, eight hundred twenty".