490990497 has 8 divisors (see below), whose sum is σ = 655119744. Its totient is φ = 327094128.

The previous prime is 490990477. The next prime is 490990519. The reversal of 490990497 is 794099094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490990497 - 2⁶ = 490990433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490990417) 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, 53238 + ... + 61775.

It is an arithmetic number, because the mean of its divisors is an integer number (81889968).

Almost surely, 2^490990497 is an apocalyptic number.

It is an amenable number.

490990497 is a deficient number, since it is larger than the sum of its proper divisors (164129247).

490990497 is a wasteful number, since it uses less digits than its factorization.

490990497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116439.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 490990497 is about 22158.3053729296. The cubic root of 490990497 is about 788.9043707520.

The spelling of 490990497 in words is "four hundred ninety million, nine hundred ninety thousand, four hundred ninety-seven".