1043425920 has 128 divisors (see below), whose sum is σ = 3342205440. Its totient is φ = 276885504.

The previous prime is 1043425913. The next prime is 1043425921. The reversal of 1043425920 is 295243401.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1043425921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426942 + ... + 429378.

It is an arithmetic number, because the mean of its divisors is an integer number (26110980).

Almost surely, 2^1043425920 is an apocalyptic number.

1043425920 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 1043425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671102720).

1043425920 is an abundant number, since it is smaller than the sum of its proper divisors (2298779520).

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

1043425920 is a wasteful number, since it uses less digits than its factorization.

1043425920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1043425920 is about 32302.1039562441. The cubic root of 1043425920 is about 1014.2706854500.

The spelling of 1043425920 in words is "one billion, forty-three million, four hundred twenty-five thousand, nine hundred twenty".