13232420 has 12 divisors (see below), whose sum is σ = 27788124. Its totient is φ = 5292960.

The previous prime is 13232399. The next prime is 13232437. The reversal of 13232420 is 2423231.

It can be written as a sum of positive squares in 2 ways, for example, as 2630884 + 10601536 = 1622^2 + 3256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330791 + ... + 330830.

It is an arithmetic number, because the mean of its divisors is an integer number (2315677).

Almost surely, 2^13232420 is an apocalyptic number.

13232420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13232420 is an abundant number, since it is smaller than the sum of its proper divisors (14555704).

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

13232420 is a wasteful number, since it uses less digits than its factorization.

13232420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661630 (or 661628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13232420 is about 3637.6393444101. The cubic root of 13232420 is about 236.5264747540.

Adding to 13232420 its reverse (2423231), we get a palindrome (15655651).

The spelling of 13232420 in words is "thirteen million, two hundred thirty-two thousand, four hundred twenty".