1285748874 has 24 divisors (see below), whose sum is σ = 2789691840. Its totient is φ = 427982568.

The previous prime is 1285748861. The next prime is 1285748899. The reversal of 1285748874 is 4788475821.

1285748874 is a `hidden beast` number, since 12 + 85 + 7 + 488 + 74 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1285748874.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36732 + ... + 62615.

It is an arithmetic number, because the mean of its divisors is an integer number (116237160).

Almost surely, 2^1285748874 is an apocalyptic number.

1285748874 is an abundant number, since it is smaller than the sum of its proper divisors (1503942966).

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

1285748874 is a wasteful number, since it uses less digits than its factorization.

1285748874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100074 (or 100071 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 54.

The square root of 1285748874 is about 35857.3405873888. The cubic root of 1285748874 is about 1087.3901238177.

The spelling of 1285748874 in words is "one billion, two hundred eighty-five million, seven hundred forty-eight thousand, eight hundred seventy-four".