490625405 has 16 divisors (see below), whose sum is σ = 598901040. Its totient is φ = 385786368.

The previous prime is 490625383. The next prime is 490625411. The reversal of 490625405 is 504526094.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15952036 + 474673369 = 3994^2 + 21787^2 .

It is a cyclic number.

It is not a de Polignac number, because 490625405 - 2¹⁶ = 490559869 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73799 + ... + 80171.

It is an arithmetic number, because the mean of its divisors is an integer number (37431315).

Almost surely, 2^490625405 is an apocalyptic number.

It is an amenable number.

490625405 is a deficient number, since it is larger than the sum of its proper divisors (108275635).

490625405 is a wasteful number, since it uses less digits than its factorization.

490625405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 490625405 is about 22150.0655755237. The cubic root of 490625405 is about 788.7087837394.

The spelling of 490625405 in words is "four hundred ninety million, six hundred twenty-five thousand, four hundred five".