499958421 has 16 divisors (see below), whose sum is σ = 692256768. Its totient is φ = 320612400.

The previous prime is 499958413. The next prime is 499958441. The reversal of 499958421 is 124859994.

It is not a de Polignac number, because 499958421 - 2³ = 499958413 is a prime.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565 + ... + 31626.

It is an arithmetic number, because the mean of its divisors is an integer number (43266048).

Almost surely, 2^499958421 is an apocalyptic number.

It is an amenable number.

499958421 is a deficient number, since it is larger than the sum of its proper divisors (192298347).

499958421 is a wasteful number, since it uses less digits than its factorization.

499958421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32392.

The product of its digits is 933120, while the sum is 51.

The square root of 499958421 is about 22359.7500209640. The cubic root of 499958421 is about 793.6785245248.

The spelling of 499958421 in words is "four hundred ninety-nine million, nine hundred fifty-eight thousand, four hundred twenty-one".