265853380 has 24 divisors (see below), whose sum is σ = 601238232. Its totient is φ = 98161152.

The previous prime is 265853359. The next prime is 265853381. The reversal of 265853380 is 83358562.

It is a happy number.

265853380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 45805824 + 220047556 = 6768^2 + 14834^2 .

It is not an unprimeable number, because it can be changed into a prime (265853381) 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, 510997 + ... + 511516.

It is an arithmetic number, because the mean of its divisors is an integer number (25051593).

Almost surely, 2^265853380 is an apocalyptic number.

265853380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265853380 is an abundant number, since it is smaller than the sum of its proper divisors (335384852).

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

265853380 is a wasteful number, since it uses less digits than its factorization.

265853380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022535 (or 1022533 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 265853380 is about 16305.0108862276. The cubic root of 265853380 is about 643.0045736876.

The spelling of 265853380 in words is "two hundred sixty-five million, eight hundred fifty-three thousand, three hundred eighty".