499936380 has 48 divisors (see below), whose sum is σ = 1444982784. Its totient is φ = 129015360.

The previous prime is 499936363. The next prime is 499936399. The reversal of 499936380 is 83639994.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132532 + ... + 136251.

It is an arithmetic number, because the mean of its divisors is an integer number (30103808).

Almost surely, 2^499936380 is an apocalyptic number.

It is an amenable number.

499936380 is an abundant number, since it is smaller than the sum of its proper divisors (945046404).

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

499936380 is a wasteful number, since it uses less digits than its factorization.

499936380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268826 (or 268824 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 499936380 is about 22359.2571432953. The cubic root of 499936380 is about 793.6668610712. Note that the first 3 decimals are identical.

The spelling of 499936380 in words is "four hundred ninety-nine million, nine hundred thirty-six thousand, three hundred eighty".