497640830 has 64 divisors (see below), whose sum is σ = 990973440. Its totient is φ = 179097600.

The previous prime is 497640817. The next prime is 497640839. The reversal of 497640830 is 38046794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497640839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468500 + ... + 469560.

It is an arithmetic number, because the mean of its divisors is an integer number (15483960).

Almost surely, 2^497640830 is an apocalyptic number.

497640830 is a deficient number, since it is larger than the sum of its proper divisors (493332610).

497640830 is a wasteful number, since it uses less digits than its factorization.

497640830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 497640830 is about 22307.8647566279. The cubic root of 497640830 is about 792.4502411812.

The spelling of 497640830 in words is "four hundred ninety-seven million, six hundred forty thousand, eight hundred thirty".