15100420 has 48 divisors (see below), whose sum is σ = 35054208. Its totient is φ = 5434880.

The previous prime is 15100373. The next prime is 15100429. The reversal of 15100420 is 2400151.

It is a self number, because there is not a number n which added to its sum of digits gives 15100420.

It is not an unprimeable number, because it can be changed into a prime (15100429) 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, 6855 + ... + 8785.

It is an arithmetic number, because the mean of its divisors is an integer number (730296).

Almost surely, 2^15100420 is an apocalyptic number.

15100420 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 15100420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17527104).

15100420 is an abundant number, since it is smaller than the sum of its proper divisors (19953788).

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

15100420 is a wasteful number, since it uses less digits than its factorization.

15100420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 15100420 is about 3885.9258870956. The cubic root of 15100420 is about 247.1703327719.

Adding to 15100420 its reverse (2400151), we get a palindrome (17500571).

The spelling of 15100420 in words is "fifteen million, one hundred thousand, four hundred twenty".