499453680 has 80 divisors (see below), whose sum is σ = 1689070464. Its totient is φ = 121079040.

The previous prime is 499453649. The next prime is 499453697. The reversal of 499453680 is 86354994.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91954 + ... + 97233.

Almost surely, 2^499453680 is an apocalyptic number.

499453680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499453680 is an abundant number, since it is smaller than the sum of its proper divisors (1189616784).

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

499453680 is a wasteful number, since it uses less digits than its factorization.

499453680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189214 (or 189208 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 499453680 is about 22348.4603496527. The cubic root of 499453680 is about 793.4113443205.

The spelling of 499453680 in words is "four hundred ninety-nine million, four hundred fifty-three thousand, six hundred eighty".