15012304420 has 12 divisors (see below), whose sum is σ = 31525839324. Its totient is φ = 6004921760.

The previous prime is 15012304399. The next prime is 15012304423. The reversal of 15012304420 is 2440321051.

It can be written as a sum of positive squares in 2 ways, for example, as 6441988644 + 8570315776 = 80262^2 + 92576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15012304391 and 15012304400.

It is not an unprimeable number, because it can be changed into a prime (15012304423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375307591 + ... + 375307630.

It is an arithmetic number, because the mean of its divisors is an integer number (2627153277).

Almost surely, 2^15012304420 is an apocalyptic number.

15012304420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15012304420 is an abundant number, since it is smaller than the sum of its proper divisors (16513534904).

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

15012304420 is a wasteful number, since it uses less digits than its factorization.

15012304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750615230 (or 750615228 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 15012304420 its reverse (2440321051), we get a palindrome (17452625471).

The spelling of 15012304420 in words is "fifteen billion, twelve million, three hundred four thousand, four hundred twenty".