681324480 has 112 divisors (see below), whose sum is σ = 2403591840. Its totient is φ = 181684224.

The previous prime is 681324467. The next prime is 681324491. The reversal of 681324480 is 84423186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30789 + ... + 48068.

Almost surely, 2^681324480 is an apocalyptic number.

681324480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681324480 is an abundant number, since it is smaller than the sum of its proper divisors (1722267360).

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

681324480 is a wasteful number, since it uses less digits than its factorization.

681324480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78883 (or 78867 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 681324480 is about 26102.1930113161. The cubic root of 681324480 is about 879.9364967950.

The spelling of 681324480 in words is "six hundred eighty-one million, three hundred twenty-four thousand, four hundred eighty".