265026630 has 128 divisors (see below), whose sum is σ = 748154880. Its totient is φ = 59391360.

The previous prime is 265026623. The next prime is 265026647. The reversal of 265026630 is 36620562.

It is a super-2 number, since 2×265026630² = 140478229218313800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 269119 + ... + 270101.

It is an arithmetic number, because the mean of its divisors is an integer number (5844960).

Almost surely, 2^265026630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265026630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374077440).

265026630 is an abundant number, since it is smaller than the sum of its proper divisors (483128250).

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

265026630 is a wasteful number, since it uses less digits than its factorization.

265026630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 265026630 is about 16279.6385095001. The cubic root of 265026630 is about 642.3373436960.

The spelling of 265026630 in words is "two hundred sixty-five million, twenty-six thousand, six hundred thirty".