73820000 has 60 divisors (see below), whose sum is σ = 181657476. Its totient is φ = 29520000.

The previous prime is 73819973. The next prime is 73820017. The reversal of 73820000 is 2837.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18155 + ... + 21845.

Almost surely, 2^73820000 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 73820000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90828738).

73820000 is an abundant number, since it is smaller than the sum of its proper divisors (107837476).

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

73820000 is an equidigital number, since it uses as much as digits as its factorization.

73820000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 73820000 is about 8591.8566096042. The cubic root of 73820000 is about 419.4929633443.

Adding to 73820000 its reverse (2837), we get a palindrome (73822837).

The spelling of 73820000 in words is "seventy-three million, eight hundred twenty thousand".