265580740 has 24 divisors (see below), whose sum is σ = 558149760. Its totient is φ = 106150368.

The previous prime is 265580737. The next prime is 265580743. The reversal of 265580740 is 47085562.

It is a happy number.

265580740 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (265580737) and next prime (265580743).

It is a self number, because there is not a number n which added to its sum of digits gives 265580740.

It is not an unprimeable number, because it can be changed into a prime (265580743) 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, 26101 + ... + 34819.

It is an arithmetic number, because the mean of its divisors is an integer number (23256240).

Almost surely, 2^265580740 is an apocalyptic number.

265580740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265580740 is an abundant number, since it is smaller than the sum of its proper divisors (292569020).

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

265580740 is a wasteful number, since it uses less digits than its factorization.

265580740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251 (or 10249 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 265580740 is about 16296.6481216230. The cubic root of 265580740 is about 642.7846921760.

The spelling of 265580740 in words is "two hundred sixty-five million, five hundred eighty thousand, seven hundred forty".