1530232212 has 48 divisors (see below), whose sum is σ = 3740486400. Its totient is φ = 486245760.

The previous prime is 1530232211. The next prime is 1530232213. The reversal of 1530232212 is 2122320351.

It is an interprime number because it is at equal distance from previous prime (1530232211) and next prime (1530232213).

It is a super-2 number, since 2×1530232212² = 4683221245284825888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530232211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339 + ... + 55322.

It is an arithmetic number, because the mean of its divisors is an integer number (77926800).

Almost surely, 2^1530232212 is an apocalyptic number.

1530232212 is a gapful number since it is divisible by the number (12) 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 1530232212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870243200).

1530232212 is an abundant number, since it is smaller than the sum of its proper divisors (2210254188).

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

1530232212 is a wasteful number, since it uses less digits than its factorization.

1530232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55776 (or 55774 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1530232212 is about 39118.1826264974. The cubic root of 1530232212 is about 1152.3536451631.

Adding to 1530232212 its reverse (2122320351), we get a palindrome (3652552563).

The spelling of 1530232212 in words is "one billion, five hundred thirty million, two hundred thirty-two thousand, two hundred twelve".