499974120 has 80 divisors (see below), whose sum is σ = 1680479460. Its totient is φ = 133325568.

The previous prime is 499974089. The next prime is 499974121. The reversal of 499974120 is 21479994.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 453434436 + 46539684 = 21294^2 + 6822^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (499974121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73917 + ... + 80396.

Almost surely, 2^499974120 is an apocalyptic number.

499974120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499974120 is an abundant number, since it is smaller than the sum of its proper divisors (1180505340).

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

499974120 is a wasteful number, since it uses less digits than its factorization.

499974120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154336 (or 154323 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 499974120 is about 22360.1010731168. The cubic root of 499974120 is about 793.6868317681.

The spelling of 499974120 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, one hundred twenty".