15015420234 has 96 divisors (see below), whose sum is σ = 34342963200. Its totient is φ = 4732152480.

The previous prime is 15015420209. The next prime is 15015420239. The reversal of 15015420234 is 43202451051.

15015420234 is a `hidden beast` number, since 1 + 5 + 0 + 1 + 5 + 420 + 234 = 666.

It is a super-2 number, since 2×15015420234² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15015420198 and 15015420207.

It is not an unprimeable number, because it can be changed into a prime (15015420239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17896387 + ... + 17897225.

It is an arithmetic number, because the mean of its divisors is an integer number (357739200).

Almost surely, 2^15015420234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15015420234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17171481600).

15015420234 is an abundant number, since it is smaller than the sum of its proper divisors (19327542966).

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

15015420234 is a wasteful number, since it uses less digits than its factorization.

15015420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 15015420234 its reverse (43202451051), we get a palindrome (58217871285).

The spelling of 15015420234 in words is "fifteen billion, fifteen million, four hundred twenty thousand, two hundred thirty-four".