1030449920 has 72 divisors (see below), whose sum is σ = 2547968640. Its totient is φ = 398868480.

The previous prime is 1030449913. The next prime is 1030449941. The reversal of 1030449920 is 299440301.

It is a happy number.

1030449920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26696 + ... + 52664.

Almost surely, 2^1030449920 is an apocalyptic number.

1030449920 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 1030449920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273984320).

1030449920 is an abundant number, since it is smaller than the sum of its proper divisors (1517518720).

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

1030449920 is an equidigital number, since it uses as much as digits as its factorization.

1030449920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26021 (or 26007 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1030449920 is about 32100.6218008312. The cubic root of 1030449920 is about 1010.0486595515.

The spelling of 1030449920 in words is "one billion, thirty million, four hundred forty-nine thousand, nine hundred twenty".