2130406 has 8 divisors (see below), whose sum is σ = 3383640. Its totient is φ = 1002528.

The previous prime is 2130391. The next prime is 2130437. The reversal of 2130406 is 6040312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2130406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31296 + ... + 31363.

It is an arithmetic number, because the mean of its divisors is an integer number (422955).

2^2130406 is an apocalyptic number.

2130406 is a deficient number, since it is larger than the sum of its proper divisors (1253234).

2130406 is a wasteful number, since it uses less digits than its factorization.

2130406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62678.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2130406 is about 1459.5910386132. The cubic root of 2130406 is about 128.6730095519.

Adding to 2130406 its reverse (6040312), we get a palindrome (8170718).

The spelling of 2130406 in words is "two million, one hundred thirty thousand, four hundred six".