13022604 has 72 divisors (see below), whose sum is σ = 38857728. Its totient is φ = 3598560.

The previous prime is 13022591. The next prime is 13022609. The reversal of 13022604 is 40622031.

It is a happy number.

13022604 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (13022609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6979 + ... + 8645.

Almost surely, 2^13022604 is an apocalyptic number.

13022604 is a gapful number since it is divisible by the number (14) 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 13022604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19428864).

13022604 is an abundant number, since it is smaller than the sum of its proper divisors (25835124).

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

13022604 is a wasteful number, since it uses less digits than its factorization.

13022604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13022604 is about 3608.6845248650. The cubic root of 13022604 is about 235.2696708081.

Adding to 13022604 its reverse (40622031), we get a palindrome (53644635).

The spelling of 13022604 in words is "thirteen million, twenty-two thousand, six hundred four".