499847440 has 40 divisors (see below), whose sum is σ = 1223314560. Its totient is φ = 189415296.

The previous prime is 499847423. The next prime is 499847449. The reversal of 499847440 is 44748994.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (499847449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162904 + ... + 165943.

It is an arithmetic number, because the mean of its divisors is an integer number (30582864).

Almost surely, 2^499847440 is an apocalyptic number.

499847440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499847440 is an abundant number, since it is smaller than the sum of its proper divisors (723467120).

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

499847440 is a wasteful number, since it uses less digits than its factorization.

499847440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328879 (or 328873 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 499847440 is about 22357.2681694343. The cubic root of 499847440 is about 793.6197931376.

It can be divided in two parts, 49 and 9847440, that added together give a palindrome (9847489).

The spelling of 499847440 in words is "four hundred ninety-nine million, eight hundred forty-seven thousand, four hundred forty".