2149394 has 24 divisors (see below), whose sum is σ = 3680460. Its totient is φ = 935712.

The previous prime is 2149391. The next prime is 2149403. The reversal of 2149394 is 4939412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 9025 = 1463^2 + 95^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2149394.

It is not an unprimeable number, because it can be changed into a prime (2149391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9272 + ... + 9500.

2^2149394 is an apocalyptic number.

2149394 is a deficient number, since it is larger than the sum of its proper divisors (1531066).

2149394 is a wasteful number, since it uses less digits than its factorization.

2149394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 263 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 2149394 is about 1466.0811710134. The cubic root of 2149394 is about 129.0541606999.

The spelling of 2149394 in words is "two million, one hundred forty-nine thousand, three hundred ninety-four".