4505649 has 8 divisors (see below), whose sum is σ = 6061152. Its totient is φ = 2976960.

The previous prime is 4505647. The next prime is 4505651. The reversal of 4505649 is 9465054.

4505649 = 141² + 142² + ... + 253².

It is an interprime number because it is at equal distance from previous prime (4505647) and next prime (4505651).

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

It is not a de Polignac number, because 4505649 - 2¹ = 4505647 is a prime.

It is a super-2 number, since 2×4505649² = 40601745822402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4505647) 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 7 ways as a sum of consecutive naturals, for example, 6307 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (757644).

Almost surely, 2^4505649 is an apocalyptic number.

It is an amenable number.

4505649 is a deficient number, since it is larger than the sum of its proper divisors (1555503).

4505649 is a wasteful number, since it uses less digits than its factorization.

4505649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13407.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 4505649 is about 2122.6514080272. The cubic root of 4505649 is about 165.1654172129.

The spelling of 4505649 in words is "four million, five hundred five thousand, six hundred forty-nine".