1284734748 has 24 divisors (see below), whose sum is σ = 3270234240. Its totient is φ = 389313520.

The previous prime is 1284734741. The next prime is 1284734753. The reversal of 1284734748 is 8474374821.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1284734697 and 1284734706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284734741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4866288 + ... + 4866551.

It is an arithmetic number, because the mean of its divisors is an integer number (136259760).

Almost surely, 2^1284734748 is an apocalyptic number.

It is an amenable number.

1284734748 is an abundant number, since it is smaller than the sum of its proper divisors (1985499492).

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

1284734748 is a wasteful number, since it uses less digits than its factorization.

1284734748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9732857 (or 9732855 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 1284734748 is about 35843.1966766359. The cubic root of 1284734748 is about 1087.1041580082.

The spelling of 1284734748 in words is "one billion, two hundred eighty-four million, seven hundred thirty-four thousand, seven hundred forty-eight".