499958431 has 4 divisors (see below), whose sum is σ = 571381072. Its totient is φ = 428535792.

The previous prime is 499958413. The next prime is 499958441. The reversal of 499958431 is 134859994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 499958431 - 2¹³ = 499950239 is a prime.

It is a super-2 number, since 2×499958431² = 499916865455963522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499958441) 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 3 ways as a sum of consecutive naturals, for example, 35711310 + ... + 35711323.

It is an arithmetic number, because the mean of its divisors is an integer number (142845268).

Almost surely, 2^499958431 is an apocalyptic number.

499958431 is a deficient number, since it is larger than the sum of its proper divisors (71422641).

499958431 is an equidigital number, since it uses as much as digits as its factorization.

499958431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71422640.

The product of its digits is 1399680, while the sum is 52.

The square root of 499958431 is about 22359.7502445801. The cubic root of 499958431 is about 793.6785298164.

The spelling of 499958431 in words is "four hundred ninety-nine million, nine hundred fifty-eight thousand, four hundred thirty-one".