1020252330 has 24 divisors (see below), whose sum is σ = 2652656292. Its totient is φ = 272067264.

The previous prime is 1020252287. The next prime is 1020252347. The reversal of 1020252330 is 332520201.

It can be written as a sum of positive squares in 2 ways, for example, as 934708329 + 85544001 = 30573^2 + 9249^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 5667979 + ... + 5668158.

Almost surely, 2^1020252330 is an apocalyptic number.

1020252330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020252330 is an abundant number, since it is smaller than the sum of its proper divisors (1632403962).

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

1020252330 is a wasteful number, since it uses less digits than its factorization.

1020252330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11336150 (or 11336147 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1020252330 is about 31941.3889804435. The cubic root of 1020252330 is about 1006.7057096144.

Adding to 1020252330 its reverse (332520201), we get a palindrome (1352772531).

The spelling of 1020252330 in words is "one billion, twenty million, two hundred fifty-two thousand, three hundred thirty".