499019904 has 192 divisors, whose sum is σ = 1543782240. Its totient is φ = 154165248.

The previous prime is 499019893. The next prime is 499019909. The reversal of 499019904 is 409910994.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 499019904.

It is not an unprimeable number, because it can be changed into a prime (499019909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1625319 + ... + 1625625.

Almost surely, 2^499019904 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 499019904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771891120).

499019904 is an abundant number, since it is smaller than the sum of its proper divisors (1044762336).

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

499019904 is a wasteful number, since it uses less digits than its factorization.

499019904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 499019904 is about 22338.7534119521. The cubic root of 499019904 is about 793.1815849544.

The spelling of 499019904 in words is "four hundred ninety-nine million, nineteen thousand, nine hundred four".