73370440 has 128 divisors (see below), whose sum is σ = 197406720. Its totient is φ = 24192000.

The previous prime is 73370417. The next prime is 73370441. The reversal of 73370440 is 4407337.

It is a junction number, because it is equal to n+sod(n) for n = 73370399 and 73370408.

It is not an unprimeable number, because it can be changed into a prime (73370441) 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 31 ways as a sum of consecutive naturals, for example, 577657 + ... + 577783.

It is an arithmetic number, because the mean of its divisors is an integer number (1542240).

Almost surely, 2^73370440 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 73370440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98703360).

73370440 is an abundant number, since it is smaller than the sum of its proper divisors (124036280).

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

73370440 is a wasteful number, since it uses less digits than its factorization.

73370440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 73370440 is about 8565.6546743375. The cubic root of 73370440 is about 418.6396652949.

Adding to 73370440 its reverse (4407337), we get a palindrome (77777777).

The spelling of 73370440 in words is "seventy-three million, three hundred seventy thousand, four hundred forty".