2152040406 has 16 divisors (see below), whose sum is σ = 4327862448. Its totient is φ = 713383200.

The previous prime is 2152040321. The next prime is 2152040419. The reversal of 2152040406 is 6040402512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989725 + ... + 991896.

It is an arithmetic number, because the mean of its divisors is an integer number (270491403).

Almost surely, 2^2152040406 is an apocalyptic number.

2152040406 is an abundant number, since it is smaller than the sum of its proper divisors (2175822042).

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

2152040406 is a wasteful number, since it uses less digits than its factorization.

2152040406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981807.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2152040406 is about 46390.0895235178. The cubic root of 2152040406 is about 1291.0710424795.

Adding to 2152040406 its reverse (6040402512), we get a palindrome (8192442918).

The spelling of 2152040406 in words is "two billion, one hundred fifty-two million, forty thousand, four hundred six".