1084128946 has 8 divisors (see below), whose sum is σ = 1629950364. Its totient is φ = 540812160.

The previous prime is 1084128907. The next prime is 1084128949. The reversal of 1084128946 is 6498214801.

It can be written as a sum of positive squares in 2 ways, for example, as 839550625 + 244578321 = 28975^2 + 15639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1084128949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625075 + ... + 626806.

Almost surely, 2^1084128946 is an apocalyptic number.

1084128946 is a deficient number, since it is larger than the sum of its proper divisors (545821418).

1084128946 is a wasteful number, since it uses less digits than its factorization.

1084128946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252316.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1084128946 is about 32926.1134359948. The cubic root of 1084128946 is about 1027.2913865014.

The spelling of 1084128946 in words is "one billion, eighty-four million, one hundred twenty-eight thousand, nine hundred forty-six".