1030445620 has 108 divisors (see below), whose sum is σ = 2379849444. Its totient is φ = 374503680.

The previous prime is 1030445617. The next prime is 1030445621. The reversal of 1030445620 is 265440301.

It can be written as a sum of positive squares in 2 ways, for example, as 180956304 + 849489316 = 13452^2 + 29146^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030445621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17465151 + ... + 17465209.

It is an arithmetic number, because the mean of its divisors is an integer number (22035643).

Almost surely, 2^1030445620 is an apocalyptic number.

1030445620 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 1030445620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189924722).

1030445620 is an abundant number, since it is smaller than the sum of its proper divisors (1349403824).

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

1030445620 is a wasteful number, since it uses less digits than its factorization.

1030445620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1030445620 is about 32100.5548238656. The cubic root of 1030445620 is about 1010.0472545940.

Adding to 1030445620 its reverse (265440301), we get a palindrome (1295885921).

The spelling of 1030445620 in words is "one billion, thirty million, four hundred forty-five thousand, six hundred twenty".