15345630 has 48 divisors (see below), whose sum is σ = 40176864. Its totient is φ = 4063680.

The previous prime is 15345607. The next prime is 15345667. The reversal of 15345630 is 3654351.

It is a junction number, because it is equal to n+sod(n) for n = 15345594 and 15345603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14520 + ... + 15540.

It is an arithmetic number, because the mean of its divisors is an integer number (837018).

Almost surely, 2^15345630 is an apocalyptic number.

15345630 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 15345630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20088432).

15345630 is an abundant number, since it is smaller than the sum of its proper divisors (24831234).

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

15345630 is a wasteful number, since it uses less digits than its factorization.

15345630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 15345630 is about 3917.3498694909. The cubic root of 15345630 is about 248.5010573119.

Adding to 15345630 its reverse (3654351), we get a palindrome (18999981).

The spelling of 15345630 in words is "fifteen million, three hundred forty-five thousand, six hundred thirty".