499345938 has 128 divisors (see below), whose sum is σ = 1374320640. Its totient is φ = 130870080.

The previous prime is 499345933. The next prime is 499345943. The reversal of 499345938 is 839543994.

499345938 is a `hidden beast` number, since 49 + 9 + 3 + 4 + 593 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (499345933) and next prime (499345943).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (499345933) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1508433 + ... + 1508763.

It is an arithmetic number, because the mean of its divisors is an integer number (10736880).

Almost surely, 2^499345938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499345938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687160320).

499345938 is an abundant number, since it is smaller than the sum of its proper divisors (874974702).

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

499345938 is a wasteful number, since it uses less digits than its factorization.

499345938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 499345938 is about 22346.0497180150. The cubic root of 499345938 is about 793.3542887308.

The spelling of 499345938 in words is "four hundred ninety-nine million, three hundred forty-five thousand, nine hundred thirty-eight".