1285160460 has 96 divisors (see below), whose sum is σ = 3640611072. Its totient is φ = 338722560.

The previous prime is 1285160453. The next prime is 1285160477. The reversal of 1285160460 is 640615821.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3236982 + ... + 3237378.

It is an arithmetic number, because the mean of its divisors is an integer number (37923032).

Almost surely, 2^1285160460 is an apocalyptic number.

1285160460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1285160460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820305536).

1285160460 is an abundant number, since it is smaller than the sum of its proper divisors (2355450612).

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

1285160460 is a wasteful number, since it uses less digits than its factorization.

1285160460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1285160460 is about 35849.1347175912. The cubic root of 1285160460 is about 1087.2242196728.

The spelling of 1285160460 in words is "one billion, two hundred eighty-five million, one hundred sixty thousand, four hundred sixty".