2148406 has 16 divisors (see below), whose sum is σ = 3654000. Its totient is φ = 939168.

The previous prime is 2148403. The next prime is 2148437. The reversal of 2148406 is 6048412.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (228375).

2^2148406 is an apocalyptic number.

2148406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2148406 is a deficient number, since it is larger than the sum of its proper divisors (1505594).

2148406 is a wasteful number, since it uses less digits than its factorization.

2148406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2148406 is about 1465.7441795893. The cubic root of 2148406 is about 129.0343837997.

The spelling of 2148406 in words is "two million, one hundred forty-eight thousand, four hundred six".