2167040020 has 12 divisors (see below), whose sum is σ = 4550784084. Its totient is φ = 866816000.

The previous prime is 2167040017. The next prime is 2167040023. The reversal of 2167040020 is 200407612.

It is an interprime number because it is at equal distance from previous prime (2167040017) and next prime (2167040023).

It can be written as a sum of positive squares in 2 ways, for example, as 468116496 + 1698923524 = 21636^2 + 41218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2167039973 and 2167040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167040023) 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, 54175981 + ... + 54176020.

It is an arithmetic number, because the mean of its divisors is an integer number (379232007).

Almost surely, 2^2167040020 is an apocalyptic number.

2167040020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2167040020 is an abundant number, since it is smaller than the sum of its proper divisors (2383744064).

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

2167040020 is a wasteful number, since it uses less digits than its factorization.

2167040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108352010 (or 108352008 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2167040020 is about 46551.4770979397. The cubic root of 2167040020 is about 1294.0636672615.

Adding to 2167040020 its reverse (200407612), we get a palindrome (2367447632).

The spelling of 2167040020 in words is "two billion, one hundred sixty-seven million, forty thousand, twenty".