490749 has 8 divisors (see below), whose sum is σ = 747840. Its totient is φ = 280416.

The previous prime is 490741. The next prime is 490769. The reversal of 490749 is 947094.

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

It is not a de Polignac number, because 490749 - 2³ = 490741 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 490749.

It is not an unprimeable number, because it can be changed into a prime (490741) 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, 11664 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (93480).

2⁴⁹⁰⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

490749 is a deficient number, since it is larger than the sum of its proper divisors (257091).

490749 is a wasteful number, since it uses less digits than its factorization.

490749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23379.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 490749 is about 700.5347957097. The cubic root of 490749 is about 78.8775006888.

The spelling of 490749 in words is "four hundred ninety thousand, seven hundred forty-nine".