1285475016 has 192 divisors, whose sum is σ = 3967418880. Its totient is φ = 345461760.

The previous prime is 1285474997. The next prime is 1285475027. The reversal of 1285475016 is 6105745821.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1348396 + ... + 1349348.

It is an arithmetic number, because the mean of its divisors is an integer number (20663640).

Almost surely, 2^1285475016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1285475016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1983709440).

1285475016 is an abundant number, since it is smaller than the sum of its proper divisors (2681943864).

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

1285475016 is a wasteful number, since it uses less digits than its factorization.

1285475016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1285475016 is about 35853.5216680314. The cubic root of 1285475016 is about 1087.3129154723.

The spelling of 1285475016 in words is "one billion, two hundred eighty-five million, four hundred seventy-five thousand, sixteen".