15232203420 has 96 divisors (see below), whose sum is σ = 49012594176. Its totient is φ = 3462393600.

The previous prime is 15232203391. The next prime is 15232203457. The reversal of 15232203420 is 2430223251.

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, 24166 + ... + 176205.

It is an arithmetic number, because the mean of its divisors is an integer number (510547856).

Almost surely, 2^15232203420 is an apocalyptic number.

15232203420 is a gapful number since it is divisible by the number (10) 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 15232203420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24506297088).

15232203420 is an abundant number, since it is smaller than the sum of its proper divisors (33780390756).

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

15232203420 is a wasteful number, since it uses less digits than its factorization.

15232203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200571 (or 200569 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 15232203420 its reverse (2430223251), we get a palindrome (17662426671).

The spelling of 15232203420 in words is "fifteen billion, two hundred thirty-two million, two hundred three thousand, four hundred twenty".