1530423320 has 64 divisors (see below), whose sum is σ = 3560245920. Its totient is φ = 591704064.

The previous prime is 1530423299. The next prime is 1530423413. The reversal of 1530423320 is 233240351.

It is a congruent number.

It is an unprimeable number.

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, 162254 + ... + 171426.

Almost surely, 2^1530423320 is an apocalyptic number.

1530423320 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 1530423320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780122960).

1530423320 is an abundant number, since it is smaller than the sum of its proper divisors (2029822600).

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

1530423320 is a wasteful number, since it uses less digits than its factorization.

1530423320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324 (or 9320 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1530423320 is about 39120.6252506271. The cubic root of 1530423320 is about 1152.4016149704.

Adding to 1530423320 its reverse (233240351), we get a palindrome (1763663671).

The spelling of 1530423320 in words is "one billion, five hundred thirty million, four hundred twenty-three thousand, three hundred twenty".