73803520 has 72 divisors (see below), whose sum is σ = 202061664. Its totient is φ = 25300992.

The previous prime is 73803487. The next prime is 73803533. The reversal of 73803520 is 2530837.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4842 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (2806412).

Almost surely, 2^73803520 is an apocalyptic number.

73803520 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 73803520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101030832).

73803520 is an abundant number, since it is smaller than the sum of its proper divisors (128258144).

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

73803520 is an equidigital number, since it uses as much as digits as its factorization.

73803520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265 (or 8251 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 73803520 is about 8590.8975084097. The cubic root of 73803520 is about 419.4617443496.

The spelling of 73803520 in words is "seventy-three million, eight hundred three thousand, five hundred twenty".