1226870784 has 156 divisors (see below), whose sum is σ = 3700497216. Its totient is φ = 390905856.

The previous prime is 1226870779. The next prime is 1226870819. The reversal of 1226870784 is 4870786221.

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, 847149 + ... + 848595.

It is an arithmetic number, because the mean of its divisors is an integer number (23721136).

Almost surely, 2^1226870784 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 1226870784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1850248608).

1226870784 is an abundant number, since it is smaller than the sum of its proper divisors (2473626432).

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

1226870784 is a wasteful number, since it uses less digits than its factorization.

1226870784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1226870784 is about 35026.7152899041. The cubic root of 1226870784 is about 1070.5318880033.

The spelling of 1226870784 in words is "one billion, two hundred twenty-six million, eight hundred seventy thousand, seven hundred eighty-four".