12621030 has 64 divisors (see below), whose sum is σ = 32126976. Its totient is φ = 3168000.

The previous prime is 12621017. The next prime is 12621041. The reversal of 12621030 is 3012621.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37965 + ... + 38295.

It is an arithmetic number, because the mean of its divisors is an integer number (501984).

Almost surely, 2^12621030 is an apocalyptic number.

12621030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12621030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16063488).

12621030 is an abundant number, since it is smaller than the sum of its proper divisors (19505946).

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

12621030 is a wasteful number, since it uses less digits than its factorization.

12621030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12621030 is about 3552.6089005124. The cubic root of 12621030 is about 232.8260657981.

Adding to 12621030 its reverse (3012621), we get a palindrome (15633651).

The spelling of 12621030 in words is "twelve million, six hundred twenty-one thousand, thirty".