2149450 has 12 divisors (see below), whose sum is σ = 3998070. Its totient is φ = 859760.

The previous prime is 2149421. The next prime is 2149453. The reversal of 2149450 is 549412.

It can be written as a sum of positive squares in 3 ways, for example, as 1555009 + 594441 = 1247^2 + 771^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2149453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21445 + ... + 21544.

2^2149450 is an apocalyptic number.

2149450 is a deficient number, since it is larger than the sum of its proper divisors (1848620).

2149450 is a wasteful number, since it uses less digits than its factorization.

2149450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43001 (or 42996 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2149450 is about 1466.1002694223. The cubic root of 2149450 is about 129.0552814763.

The spelling of 2149450 in words is "two million, one hundred forty-nine thousand, four hundred fifty".