15442402120 has 64 divisors (see below), whose sum is σ = 35106462720. Its totient is φ = 6113105664.

The previous prime is 15442402099. The next prime is 15442402121. The reversal of 15442402120 is 2120424451.

It is not an unprimeable number, because it can be changed into a prime (15442402121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538157 + ... + 1548163.

It is an arithmetic number, because the mean of its divisors is an integer number (548538480).

Almost surely, 2^15442402120 is an apocalyptic number.

15442402120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15442402120 is an abundant number, since it is smaller than the sum of its proper divisors (19664060600).

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

15442402120 is a wasteful number, since it uses less digits than its factorization.

15442402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414 (or 10410 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 15442402120 its reverse (2120424451), we get a palindrome (17562826571).

The spelling of 15442402120 in words is "fifteen billion, four hundred forty-two million, four hundred two thousand, one hundred twenty".