73421208 has 128 divisors (see below), whose sum is σ = 238080000. Its totient is φ = 20956320.

The previous prime is 73421197. The next prime is 73421233. The reversal of 73421208 is 80212437.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73593 + ... + 74583.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 2^73421208 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 73421208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119040000).

73421208 is an abundant number, since it is smaller than the sum of its proper divisors (164658792).

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

73421208 is a wasteful number, since it uses less digits than its factorization.

73421208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 73421208 is about 8568.6176247981. The cubic root of 73421208 is about 418.7362009858.

The spelling of 73421208 in words is "seventy-three million, four hundred twenty-one thousand, two hundred eight".