4991450 has 12 divisors (see below), whose sum is σ = 9284190. Its totient is φ = 1996560.

The previous prime is 4991449. The next prime is 4991453. The reversal of 4991450 is 541994.

It can be written as a sum of positive squares in 3 ways, for example, as 3924361 + 1067089 = 1981^2 + 1033^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4991453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49865 + ... + 49964.

Almost surely, 2^4991450 is an apocalyptic number.

4991450 is a deficient number, since it is larger than the sum of its proper divisors (4292740).

4991450 is a wasteful number, since it uses less digits than its factorization.

4991450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99841 (or 99836 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 4991450 is about 2234.1553213687. The cubic root of 4991450 is about 170.9000704288.

The spelling of 4991450 in words is "four million, nine hundred ninety-one thousand, four hundred fifty".