1284104862 has 48 divisors (see below), whose sum is σ = 2894280480. Its totient is φ = 410961600.

The previous prime is 1284104827. The next prime is 1284104893. The reversal of 1284104862 is 2684014821.

It is a super-2 number, since 2×1284104862² = 3297850593224078088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87687 + ... + 101277.

It is an arithmetic number, because the mean of its divisors is an integer number (60297510).

Almost surely, 2^1284104862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1284104862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447140240).

1284104862 is an abundant number, since it is smaller than the sum of its proper divisors (1610175618).

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

1284104862 is a wasteful number, since it uses less digits than its factorization.

1284104862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13809 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1284104862 is about 35834.4089109894. The cubic root of 1284104862 is about 1086.9264653939.

The spelling of 1284104862 in words is "one billion, two hundred eighty-four million, one hundred four thousand, eight hundred sixty-two".