73335240 has 128 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 17775360.

The previous prime is 73335233. The next prime is 73335257. The reversal of 73335240 is 4253337.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8794 + ... + 14966.

It is an arithmetic number, because the mean of its divisors is an integer number (2083725).

Almost surely, 2^73335240 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 73335240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133358400).

73335240 is an abundant number, since it is smaller than the sum of its proper divisors (193381560).

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

73335240 is a wasteful number, since it uses less digits than its factorization.

73335240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204 (or 6194 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 73335240 is about 8563.5997104022. The cubic root of 73335240 is about 418.5727061152.

Adding to 73335240 its reverse (4253337), we get a palindrome (77588577).

The spelling of 73335240 in words is "seventy-three million, three hundred thirty-five thousand, two hundred forty".