73403680 has 48 divisors (see below), whose sum is σ = 198192960. Its totient is φ = 25166592.

The previous prime is 73403677. The next prime is 73403689. The reversal of 73403680 is 8630437.

It is not an unprimeable number, because it can be changed into a prime (73403689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31650 + ... + 33889.

It is an arithmetic number, because the mean of its divisors is an integer number (4129020).

Almost surely, 2^73403680 is an apocalyptic number.

73403680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73403680 is an abundant number, since it is smaller than the sum of its proper divisors (124789280).

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

73403680 is a wasteful number, since it uses less digits than its factorization.

73403680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65561 (or 65553 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 73403680 is about 8567.5947616586. The cubic root of 73403680 is about 418.7028764080.

The spelling of 73403680 in words is "seventy-three million, four hundred three thousand, six hundred eighty".