265479380 has 12 divisors (see below), whose sum is σ = 557506740. Its totient is φ = 106191744.

The previous prime is 265479373. The next prime is 265479391. The reversal of 265479380 is 83974562.

It can be written as a sum of positive squares in 2 ways, for example, as 51208336 + 214271044 = 7156^2 + 14638^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6636965 + ... + 6637004.

It is an arithmetic number, because the mean of its divisors is an integer number (46458895).

Almost surely, 2^265479380 is an apocalyptic number.

265479380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265479380 is an abundant number, since it is smaller than the sum of its proper divisors (292027360).

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

265479380 is a wasteful number, since it uses less digits than its factorization.

265479380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13273978 (or 13273976 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 265479380 is about 16293.5379828937. The cubic root of 265479380 is about 642.7029079488.

The spelling of 265479380 in words is "two hundred sixty-five million, four hundred seventy-nine thousand, three hundred eighty".