73238320 has 20 divisors (see below), whose sum is σ = 170279280. Its totient is φ = 29295296.

The previous prime is 73238317. The next prime is 73238327. The reversal of 73238320 is 2383237.

It is a tau number, because it is divible by the number of its divisors (20).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (73238327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457660 + ... + 457819.

It is an arithmetic number, because the mean of its divisors is an integer number (8513964).

Almost surely, 2^73238320 is an apocalyptic number.

It is an amenable number.

73238320 is an abundant number, since it is smaller than the sum of its proper divisors (97040960).

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

73238320 is a wasteful number, since it uses less digits than its factorization.

73238320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915492 (or 915486 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 73238320 is about 8557.9390042229. The cubic root of 73238320 is about 418.3882293142.

The spelling of 73238320 in words is "seventy-three million, two hundred thirty-eight thousand, three hundred twenty".