20150080 has 28 divisors (see below), whose sum is σ = 47983140. Its totient is φ = 8059904.

The previous prime is 20150077. The next prime is 20150087. The reversal of 20150080 is 8005102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 10810944 = 3056^2 + 3288^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31165 + ... + 31804.

Almost surely, 2^20150080 is an apocalyptic number.

20150080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20150080 is an abundant number, since it is smaller than the sum of its proper divisors (27833060).

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

20150080 is an equidigital number, since it uses as much as digits as its factorization.

20150080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62986 (or 62976 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 20150080 is about 4488.8840484022. The cubic root of 20150080 is about 272.1190367098.

Adding to 20150080 its reverse (8005102), we get a palindrome (28155182).

The spelling of 20150080 in words is "twenty million, one hundred fifty thousand, eighty".