1084578432 has 256 divisors, whose sum is σ = 3511019520. Its totient is φ = 289935360.

The previous prime is 1084578413. The next prime is 1084578433. The reversal of 1084578432 is 2348754801.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1084578433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3276507 + ... + 3276837.

It is an arithmetic number, because the mean of its divisors is an integer number (13714920).

Almost surely, 2^1084578432 is an apocalyptic number.

1084578432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1084578432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755509760).

1084578432 is an abundant number, since it is smaller than the sum of its proper divisors (2426441088).

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

1084578432 is a wasteful number, since it uses less digits than its factorization.

1084578432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 1084578432 is about 32932.9384051894. The cubic root of 1084578432 is about 1027.4333404935.

The spelling of 1084578432 in words is "one billion, eighty-four million, five hundred seventy-eight thousand, four hundred thirty-two".