499555420 has 96 divisors (see below), whose sum is σ = 1307109888. Its totient is φ = 156148992.

The previous prime is 499555409. The next prime is 499555447. The reversal of 499555420 is 24555994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149407 + ... + 152713.

It is an arithmetic number, because the mean of its divisors is an integer number (13615728).

Almost surely, 2^499555420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499555420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653554944).

499555420 is an abundant number, since it is smaller than the sum of its proper divisors (807554468).

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

499555420 is a wasteful number, since it uses less digits than its factorization.

499555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 499555420 is about 22350.7364531910. The cubic root of 499555420 is about 793.4652139737.

The spelling of 499555420 in words is "four hundred ninety-nine million, five hundred fifty-five thousand, four hundred twenty".