497512990 has 32 divisors (see below), whose sum is σ = 1021144320. Its totient is φ = 172890624.

The previous prime is 497512987. The next prime is 497512991. The reversal of 497512990 is 99215794.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 497512990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497512991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110350 + ... + 114769.

It is an arithmetic number, because the mean of its divisors is an integer number (31910760).

Almost surely, 2^497512990 is an apocalyptic number.

497512990 is an abundant number, since it is smaller than the sum of its proper divisors (523631330).

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

497512990 is a wasteful number, since it uses less digits than its factorization.

497512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225156.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 497512990 is about 22304.9992154225. Note that the first 3 decimals coincide. The cubic root of 497512990 is about 792.3823772996.

The spelling of 497512990 in words is "four hundred ninety-seven million, five hundred twelve thousand, nine hundred ninety".