499194400 has 72 divisors (see below), whose sum is σ = 1260739620. Its totient is φ = 192783360.

The previous prime is 499194389. The next prime is 499194401. The reversal of 499194400 is 4491994.

It can be written as a sum of positive squares in 6 ways, for example, as 150700176 + 348494224 = 12276^2 + 18668^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (499194401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12442 + ... + 33958.

Almost surely, 2^499194400 is an apocalyptic number.

499194400 is a gapful number since it is divisible by the number (40) 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 499194400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630369810).

499194400 is an abundant number, since it is smaller than the sum of its proper divisors (761545220).

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

499194400 is a wasteful number, since it uses less digits than its factorization.

499194400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21566 (or 21553 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 499194400 is about 22342.6587495759. The cubic root of 499194400 is about 793.2740267477.

The spelling of 499194400 in words is "four hundred ninety-nine million, one hundred ninety-four thousand, four hundred".