449490 has 16 divisors (see below), whose sum is σ = 1078848. Its totient is φ = 119856.

The previous prime is 449473. The next prime is 449543. The reversal of 449490 is 94944.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14983 = 449490 / (4 + 4 + 9 + 4 + 9 + 0).

It is a Curzon number.

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 449490.

It is an unprimeable number.

449490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7462 + ... + 7521.

It is an arithmetic number, because the mean of its divisors is an integer number (67428).

2⁴⁴⁹⁴⁹⁰ is an apocalyptic number.

449490 is an abundant number, since it is smaller than the sum of its proper divisors (629358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449490 is a wasteful number, since it uses less digits than its factorization.

449490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 449490 is about 670.4401539287. The cubic root of 449490 is about 76.6019828286.

It can be divided in two parts, 449 and 490, that added together give a palindrome (939).

The spelling of 449490 in words is "four hundred forty-nine thousand, four hundred ninety".