1093928420 has 96 divisors (see below), whose sum is σ = 2618246400. Its totient is φ = 380588544.

The previous prime is 1093928411. The next prime is 1093928447. The reversal of 1093928420 is 248293901.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130777 + ... + 1131743.

It is an arithmetic number, because the mean of its divisors is an integer number (27273400).

Almost surely, 2^1093928420 is an apocalyptic number.

1093928420 is a gapful number since it is divisible by the number (10) 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 1093928420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309123200).

1093928420 is an abundant number, since it is smaller than the sum of its proper divisors (1524317980).

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

1093928420 is a wasteful number, since it uses less digits than its factorization.

1093928420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1093928420 is about 33074.5887351604. The cubic root of 1093928420 is about 1030.3773462659.

The spelling of 1093928420 in words is "one billion, ninety-three million, nine hundred twenty-eight thousand, four hundred twenty".