499354128 has 240 divisors, whose sum is σ = 1754887680. Its totient is φ = 129033216.

The previous prime is 499354087. The next prime is 499354151. The reversal of 499354128 is 821453994.

499354128 is a `hidden beast` number, since 499 + 35 + 4 + 128 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 694153 + ... + 694871.

It is an arithmetic number, because the mean of its divisors is an integer number (7312032).

Almost surely, 2^499354128 is an apocalyptic number.

499354128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499354128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877443840).

499354128 is an abundant number, since it is smaller than the sum of its proper divisors (1255533552).

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

499354128 is a wasteful number, since it uses less digits than its factorization.

499354128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 797 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 499354128 is about 22346.2329711296. The cubic root of 499354128 is about 793.3586260954.

The spelling of 499354128 in words is "four hundred ninety-nine million, three hundred fifty-four thousand, one hundred twenty-eight".