4557749 has 8 divisors (see below), whose sum is σ = 5435520. Its totient is φ = 3736656.

The previous prime is 4557743. The next prime is 4557757. The reversal of 4557749 is 9477554.

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

It is a de Polignac number, because none of the positive numbers 2^k-4557749 is a prime.

It is a d-powerful number, because it can be written as 4 + 5⁹ + 5⁹ + 7⁴ + 7⁶ + 4 + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4557743) 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, 13994 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (679440).

Almost surely, 2^4557749 is an apocalyptic number.

It is an amenable number.

4557749 is a deficient number, since it is larger than the sum of its proper divisors (877771).

4557749 is a wasteful number, since it uses less digits than its factorization.

4557749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28339.

The product of its digits is 176400, while the sum is 41.

The square root of 4557749 is about 2134.8885216798. Note that the first 3 decimals coincide. The cubic root of 4557749 is about 165.7995960650.

The spelling of 4557749 in words is "four million, five hundred fifty-seven thousand, seven hundred forty-nine".