73448424 has 128 divisors (see below), whose sum is σ = 240844800. Its totient is φ = 20295360.

The previous prime is 73448413. The next prime is 73448447. The reversal of 73448424 is 42484437.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

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, 46089 + ... + 47655.

It is an arithmetic number, because the mean of its divisors is an integer number (1881600).

Almost surely, 2^73448424 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 73448424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120422400).

73448424 is an abundant number, since it is smaller than the sum of its proper divisors (167396376).

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

73448424 is a wasteful number, since it uses less digits than its factorization.

73448424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1610 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 73448424 is about 8570.2055984673. The cubic root of 73448424 is about 418.7879340700.

The spelling of 73448424 in words is "seventy-three million, four hundred forty-eight thousand, four hundred twenty-four".