499778376 has 64 divisors (see below), whose sum is σ = 1325393280. Its totient is φ = 156503040.

The previous prime is 499778371. The next prime is 499778387. The reversal of 499778376 is 673877994.

It is not an unprimeable number, because it can be changed into a prime (499778371) 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, 361206 + ... + 362586.

It is an arithmetic number, because the mean of its divisors is an integer number (20709270).

Almost surely, 2^499778376 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 499778376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662696640).

499778376 is an abundant number, since it is smaller than the sum of its proper divisors (825614904).

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

499778376 is a wasteful number, since it uses less digits than its factorization.

499778376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2290 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 60.

The square root of 499778376 is about 22355.7235624347. The cubic root of 499778376 is about 793.5832399299.

The spelling of 499778376 in words is "four hundred ninety-nine million, seven hundred seventy-eight thousand, three hundred seventy-six".