1285415488 has 56 divisors (see below), whose sum is σ = 3015691200. Its totient is φ = 531890688.

The previous prime is 1285415449. The next prime is 1285415501. The reversal of 1285415488 is 8845145821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36478 + ... + 62461.

Almost surely, 2^1285415488 is an apocalyptic number.

It is an amenable number.

1285415488 is an abundant number, since it is smaller than the sum of its proper divisors (1730275712).

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

1285415488 is an equidigital number, since it uses as much as digits as its factorization.

1285415488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98987 (or 98977 counting only the distinct ones).

The product of its digits is 409600, while the sum is 46.

The square root of 1285415488 is about 35852.6915028705. The cubic root of 1285415488 is about 1087.2961313882.

The spelling of 1285415488 in words is "one billion, two hundred eighty-five million, four hundred fifteen thousand, four hundred eighty-eight".