1265088330 has 48 divisors (see below), whose sum is σ = 3588253344. Its totient is φ = 306687840.

The previous prime is 1265088329. The next prime is 1265088347. The reversal of 1265088330 is 338805621.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637944 + ... + 639923.

It is an arithmetic number, because the mean of its divisors is an integer number (74755278).

Almost surely, 2^1265088330 is an apocalyptic number.

1265088330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265088330 is an abundant number, since it is smaller than the sum of its proper divisors (2323165014).

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

1265088330 is a wasteful number, since it uses less digits than its factorization.

1265088330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277891 (or 1277888 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1265088330 is about 35568.0802124602. The cubic root of 1265088330 is about 1081.5342648406.

The spelling of 1265088330 in words is "one billion, two hundred sixty-five million, eighty-eight thousand, three hundred thirty".