2149406 has 8 divisors (see below), whose sum is σ = 3684720. Its totient is φ = 921168.

The previous prime is 2149403. The next prime is 2149409. The reversal of 2149406 is 6049412.

It is an interprime number because it is at equal distance from previous prime (2149403) and next prime (2149409).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149403) 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, 76751 + ... + 76778.

It is an arithmetic number, because the mean of its divisors is an integer number (460590).

2^2149406 is an apocalyptic number.

2149406 is a deficient number, since it is larger than the sum of its proper divisors (1535314).

2149406 is a wasteful number, since it uses less digits than its factorization.

2149406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153538.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2149406 is about 1466.0852635505. The cubic root of 2149406 is about 129.0544008679.

The spelling of 2149406 in words is "two million, one hundred forty-nine thousand, four hundred six".