499681650 has 96 divisors (see below), whose sum is σ = 1344163968. Its totient is φ = 122112000.

The previous prime is 499681649. The next prime is 499681657. The reversal of 499681650 is 56186994.

It is a self number, because there is not a number n which added to its sum of digits gives 499681650.

It is not an unprimeable number, because it can be changed into a prime (499681657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293602 + ... + 295298.

It is an arithmetic number, because the mean of its divisors is an integer number (14001708).

Almost surely, 2^499681650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499681650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672081984).

499681650 is an abundant number, since it is smaller than the sum of its proper divisors (844482318).

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

499681650 is a wasteful number, since it uses less digits than its factorization.

499681650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 499681650 is about 22353.5601191399. The cubic root of 499681650 is about 793.5320405125.

The spelling of 499681650 in words is "four hundred ninety-nine million, six hundred eighty-one thousand, six hundred fifty".