499680740 has 24 divisors (see below), whose sum is σ = 1130047800. Its totient is φ = 184497408.

The previous prime is 499680721. The next prime is 499680761. The reversal of 499680740 is 47086994.

It can be written as a sum of positive squares in 4 ways, for example, as 11182336 + 488498404 = 3344^2 + 22102^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960665 + ... + 961184.

It is an arithmetic number, because the mean of its divisors is an integer number (47085325).

Almost surely, 2^499680740 is an apocalyptic number.

It is an amenable number.

499680740 is an abundant number, since it is smaller than the sum of its proper divisors (630367060).

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

499680740 is a wasteful number, since it uses less digits than its factorization.

499680740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921871 (or 1921869 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 499680740 is about 22353.5397644310. The cubic root of 499680740 is about 793.5315587961.

The spelling of 499680740 in words is "four hundred ninety-nine million, six hundred eighty thousand, seven hundred forty".