499989672 has 320 divisors, whose sum is σ = 1764470400. Its totient is φ = 128770560.

The previous prime is 499989671. The next prime is 499989683. The reversal of 499989672 is 276989994.

499989672 is a `hidden beast` number, since 499 + 9 + 89 + 67 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (499989671) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3596979 + ... + 3597117.

It is an arithmetic number, because the mean of its divisors is an integer number (5513970).

Almost surely, 2^499989672 is an apocalyptic number.

499989672 is a gapful number since it is divisible by the number (42) 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 499989672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882235200).

499989672 is an abundant number, since it is smaller than the sum of its proper divisors (1264480728).

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

499989672 is a wasteful number, since it uses less digits than its factorization.

499989672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 225 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 499989672 is about 22360.4488327046. The cubic root of 499989672 is about 793.6950610538.

The spelling of 499989672 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, six hundred seventy-two".