2170138080 has 96 divisors (see below), whose sum is σ = 7457401728. Its totient is φ = 526092800.

The previous prime is 2170138073. The next prime is 2170138081. The reversal of 2170138080 is 808310712.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170138081) 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, 200226 + ... + 210785.

It is an arithmetic number, because the mean of its divisors is an integer number (77681268).

Almost surely, 2^2170138080 is an apocalyptic number.

2170138080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170138080 is an abundant number, since it is smaller than the sum of its proper divisors (5287263648).

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

2170138080 is a wasteful number, since it uses less digits than its factorization.

2170138080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411040 (or 411032 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 2170138080 is about 46584.7408493382. The cubic root of 2170138080 is about 1294.6800499561.

Adding to 2170138080 its reverse (808310712), we get a palindrome (2978448792).

The spelling of 2170138080 in words is "two billion, one hundred seventy million, one hundred thirty-eight thousand, eighty".