1030252520 has 128 divisors (see below), whose sum is σ = 2590963200. Its totient is φ = 365568000.

The previous prime is 1030252511. The next prime is 1030252583. The reversal of 1030252520 is 252520301.

It is a super-2 number, since 2×1030252520² = 2122840509932700800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1030252492 and 1030252501.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4310561 + ... + 4310799.

It is an arithmetic number, because the mean of its divisors is an integer number (20241900).

Almost surely, 2^1030252520 is an apocalyptic number.

1030252520 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 1030252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295481600).

1030252520 is an abundant number, since it is smaller than the sum of its proper divisors (1560710680).

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

1030252520 is a wasteful number, since it uses less digits than its factorization.

1030252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1030252520 is about 32097.5469467684. The cubic root of 1030252520 is about 1009.9841581674.

Adding to 1030252520 its reverse (252520301), we get a palindrome (1282772821).

The spelling of 1030252520 in words is "one billion, thirty million, two hundred fifty-two thousand, five hundred twenty".