4492013 has 4 divisors (see below), whose sum is σ = 4646940. Its totient is φ = 4337088.

The previous prime is 4492009. The next prime is 4492021. The reversal of 4492013 is 3102944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1471369 + 3020644 = 1213^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 4492013 - 2² = 4492009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4492013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4492003) 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 3 ways as a sum of consecutive naturals, for example, 77420 + ... + 77477.

It is an arithmetic number, because the mean of its divisors is an integer number (1161735).

Almost surely, 2^4492013 is an apocalyptic number.

It is an amenable number.

4492013 is a deficient number, since it is larger than the sum of its proper divisors (154927).

4492013 is a wasteful number, since it uses less digits than its factorization.

4492013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154926.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4492013 is about 2119.4369535327. The cubic root of 4492013 is about 164.9986287000.

Adding to 4492013 its reverse (3102944), we get a palindrome (7594957).

The spelling of 4492013 in words is "four million, four hundred ninety-two thousand, thirteen".