265627640 has 32 divisors (see below), whose sum is σ = 598354560. Its totient is φ = 106128000.

The previous prime is 265627603. The next prime is 265627651. The reversal of 265627640 is 46726562.

It is a junction number, because it is equal to n+sod(n) for n = 265627594 and 265627603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36290 + ... + 42990.

It is an arithmetic number, because the mean of its divisors is an integer number (18698580).

Almost surely, 2^265627640 is an apocalyptic number.

265627640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265627640 is an abundant number, since it is smaller than the sum of its proper divisors (332726920).

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

265627640 is a wasteful number, since it uses less digits than its factorization.

265627640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 265627640 is about 16298.0870043082. The cubic root of 265627640 is about 642.8225272837.

The spelling of 265627640 in words is "two hundred sixty-five million, six hundred twenty-seven thousand, six hundred forty".