73455228 has 192 divisors, whose sum is σ = 242672640. Its totient is φ = 18817920.

The previous prime is 73455167. The next prime is 73455229. The reversal of 73455228 is 82255437.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

Its product of digits (67200) is a multiple of the sum of its prime divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 73455192 and 73455201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73455229) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1006200 + ... + 1006272.

It is an arithmetic number, because the mean of its divisors is an integer number (1263920).

Almost surely, 2^73455228 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 73455228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121336320).

73455228 is an abundant number, since it is smaller than the sum of its proper divisors (169217412).

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

73455228 is a wasteful number, since it uses less digits than its factorization.

73455228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 96 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 73455228 is about 8570.6025459124. The cubic root of 73455228 is about 418.8008653441.

The spelling of 73455228 in words is "seventy-three million, four hundred fifty-five thousand, two hundred twenty-eight".