4493649 has 8 divisors (see below), whose sum is σ = 6001600. Its totient is φ = 2990736.

The previous prime is 4493647. The next prime is 4493651. The reversal of 4493649 is 9463944.

It is an interprime number because it is at equal distance from previous prime (4493647) and next prime (4493651).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4493649 - 2¹ = 4493647 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4 + 4⁶ + 9⁴ + 3⁷ + 6⁷ + 4¹¹ + 9⁴ .

It is a Duffinian number.

It is a Curzon number.

4493649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4493647) 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, 2127 + ... + 3675.

It is an arithmetic number, because the mean of its divisors is an integer number (750200).

Almost surely, 2^4493649 is an apocalyptic number.

It is an amenable number.

4493649 is a deficient number, since it is larger than the sum of its proper divisors (1507951).

4493649 is a wasteful number, since it uses less digits than its factorization.

4493649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its digits is 93312, while the sum is 39.

The square root of 4493649 is about 2119.8228699587. The cubic root of 4493649 is about 165.0186572108.

The spelling of 4493649 in words is "four million, four hundred ninety-three thousand, six hundred forty-nine".