15044213420 has 24 divisors (see below), whose sum is σ = 32682258000. Its totient is φ = 5810178752.

The previous prime is 15044213413. The next prime is 15044213423. The reversal of 15044213420 is 2431244051.

It is a self number, because there is not a number n which added to its sum of digits gives 15044213420.

It is not an unprimeable number, because it can be changed into a prime (15044213423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12968570 + ... + 12969729.

It is an arithmetic number, because the mean of its divisors is an integer number (1361760750).

Almost surely, 2^15044213420 is an apocalyptic number.

15044213420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15044213420 is an abundant number, since it is smaller than the sum of its proper divisors (17638044580).

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

15044213420 is a wasteful number, since it uses less digits than its factorization.

15044213420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25938337 (or 25938335 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 15044213420 its reverse (2431244051), we get a palindrome (17475457471).

The spelling of 15044213420 in words is "fifteen billion, forty-four million, two hundred thirteen thousand, four hundred twenty".