73678680 has 128 divisors (see below), whose sum is σ = 260107200. Its totient is φ = 18487296.

The previous prime is 73678673. The next prime is 73678691. The reversal of 73678680 is 8687637.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 16354 + ... + 20366.

Almost surely, 2^73678680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73678680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130053600).

73678680 is an abundant number, since it is smaller than the sum of its proper divisors (186428520).

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

73678680 is a wasteful number, since it uses less digits than its factorization.

73678680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050 (or 4040 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 73678680 is about 8583.6286033355. The cubic root of 73678680 is about 419.2251018077.

The spelling of 73678680 in words is "seventy-three million, six hundred seventy-eight thousand, six hundred eighty".