490449520 has 40 divisors (see below), whose sum is σ = 1243960560. Its totient is φ = 178344960.

The previous prime is 490449511. The next prime is 490449523. The reversal of 490449520 is 25944094.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 490449520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490449523) 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, 277785 + ... + 279544.

It is an arithmetic number, because the mean of its divisors is an integer number (31099014).

Almost surely, 2^490449520 is an apocalyptic number.

490449520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490449520 is an abundant number, since it is smaller than the sum of its proper divisors (753511040).

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

490449520 is a wasteful number, since it uses less digits than its factorization.

490449520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557353 (or 557347 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 490449520 is about 22146.0949153570. The cubic root of 490449520 is about 788.6145240298.

It can be divided in two parts, 49044 and 9520, that added together give a square (58564 = 242²).

The spelling of 490449520 in words is "four hundred ninety million, four hundred forty-nine thousand, five hundred twenty".