1285610960 has 40 divisors (see below), whose sum is σ = 2990597280. Its totient is φ = 513977472.

The previous prime is 1285610959. The next prime is 1285610969. The reversal of 1285610960 is 690165821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285610969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238859 + ... + 244181.

It is an arithmetic number, because the mean of its divisors is an integer number (74764932).

Almost surely, 2^1285610960 is an apocalyptic number.

1285610960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1285610960 is an abundant number, since it is smaller than the sum of its proper divisors (1704986320).

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

1285610960 is a wasteful number, since it uses less digits than its factorization.

1285610960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355 (or 8349 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1285610960 is about 35855.4174428356. The cubic root of 1285610960 is about 1087.3512433160.

The spelling of 1285610960 in words is "one billion, two hundred eighty-five million, six hundred ten thousand, nine hundred sixty".