73330040 has 64 divisors (see below), whose sum is σ = 190503360. Its totient is φ = 24883200.

The previous prime is 73330021. The next prime is 73330051. The reversal of 73330040 is 4003337.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 73329994 and 73330021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26984 + ... + 29576.

It is an arithmetic number, because the mean of its divisors is an integer number (2976615).

Almost surely, 2^73330040 is an apocalyptic number.

73330040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73330040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95251680).

73330040 is an abundant number, since it is smaller than the sum of its proper divisors (117173320).

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

73330040 is a wasteful number, since it uses less digits than its factorization.

73330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 20.

The square root of 73330040 is about 8563.2960943786. The cubic root of 73330040 is about 418.5628126019.

Adding to 73330040 its reverse (4003337), we get a palindrome (77333377).

The spelling of 73330040 in words is "seventy-three million, three hundred thirty thousand, forty".