265690000 has 75 divisors (see below), whose sum is σ = 647232663. Its totient is φ = 105624000.

The previous prime is 265689979. The next prime is 265690003. The reversal of 265690000 is 96562.

The square root of 265690000 is 16300.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 20830096 + 244859904 = 4564^2 + 15648^2 .

It is a super-2 number, since 2×265690000² = 141182352200000000, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265690003) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1629919 + ... + 1630081.

Almost surely, 2^265690000 is an apocalyptic number.

265690000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

265690000 is the 16300-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265690000

265690000 is an abundant number, since it is smaller than the sum of its proper divisors (381542663).

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

265690000 is an frugal number, since it uses more digits than its factorization.

265690000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The cubic root of 265690000 is about 642.8728273657.

The spelling of 265690000 in words is "two hundred sixty-five million, six hundred ninety thousand".