73455420 has 24 divisors (see below), whose sum is σ = 205675344. Its totient is φ = 19588096.

The previous prime is 73455409. The next prime is 73455439. The reversal of 73455420 is 2455437.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 612069 + ... + 612188.

It is an arithmetic number, because the mean of its divisors is an integer number (8569806).

Almost surely, 2^73455420 is an apocalyptic number.

It is an amenable number.

73455420 is an abundant number, since it is smaller than the sum of its proper divisors (132219924).

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

73455420 is a wasteful number, since it uses less digits than its factorization.

73455420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224269 (or 1224267 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 73455420 is about 8570.6137469845. The cubic root of 73455420 is about 418.8012302362.

The spelling of 73455420 in words is "seventy-three million, four hundred fifty-five thousand, four hundred twenty".