265770740 has 24 divisors (see below), whose sum is σ = 559084680. Its totient is φ = 106124288.

The previous prime is 265770737. The next prime is 265770749. The reversal of 265770740 is 47077562.

It can be written as a sum of positive squares in 4 ways, for example, as 42328036 + 223442704 = 6506^2 + 14948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 265770694 and 265770703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265770749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 23064.

It is an arithmetic number, because the mean of its divisors is an integer number (23295195).

Almost surely, 2^265770740 is an apocalyptic number.

265770740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265770740 is an abundant number, since it is smaller than the sum of its proper divisors (293313940).

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

265770740 is a wasteful number, since it uses less digits than its factorization.

265770740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23011 (or 23009 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 265770740 is about 16302.4764989863. The cubic root of 265770740 is about 642.9379412141.

The spelling of 265770740 in words is "two hundred sixty-five million, seven hundred seventy thousand, seven hundred forty".