490720340 has 36 divisors (see below), whose sum is σ = 1132717908. Its totient is φ = 178442880.

The previous prime is 490720337. The next prime is 490720357. The reversal of 490720340 is 43027094.

It can be written as a sum of positive squares in 2 ways, for example, as 197009296 + 293711044 = 14036^2 + 17138^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98969 + ... + 103808.

Almost surely, 2^490720340 is an apocalyptic number.

It is an amenable number.

490720340 is an abundant number, since it is smaller than the sum of its proper divisors (641997568).

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

490720340 is a wasteful number, since it uses less digits than its factorization.

490720340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202808 (or 202795 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 490720340 is about 22152.2084677804. The cubic root of 490720340 is about 788.7596516308.

The spelling of 490720340 in words is "four hundred ninety million, seven hundred twenty thousand, three hundred forty".