490631449 has 16 divisors (see below), whose sum is σ = 624715776. Its totient is φ = 374173200.

The previous prime is 490631429. The next prime is 490631459. The reversal of 490631449 is 944136094.

It is a cyclic number.

It is not a de Polignac number, because 490631449 - 2¹³ = 490623257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490631429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64167 + ... + 71404.

It is an arithmetic number, because the mean of its divisors is an integer number (39044736).

Almost surely, 2^490631449 is an apocalyptic number.

It is an amenable number.

490631449 is a deficient number, since it is larger than the sum of its proper divisors (134084327).

490631449 is a wasteful number, since it uses less digits than its factorization.

490631449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135636.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 490631449 is about 22150.2020081082. The cubic root of 490631449 is about 788.7120224196.

The spelling of 490631449 in words is "four hundred ninety million, six hundred thirty-one thousand, four hundred forty-nine".