73438386 has 32 divisors (see below), whose sum is σ = 168376320. Its totient is φ = 20917776.

The previous prime is 73438381. The next prime is 73438459. The reversal of 73438386 is 68383437.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73438381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12055 + ... + 17093.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^73438386 is an apocalyptic number.

73438386 is an abundant number, since it is smaller than the sum of its proper divisors (94937934).

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

73438386 is a wasteful number, since it uses less digits than its factorization.

73438386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398.

The product of its digits is 290304, while the sum is 42.

The square root of 73438386 is about 8569.6199448984. The cubic root of 73438386 is about 418.7688549912.

The spelling of 73438386 in words is "seventy-three million, four hundred thirty-eight thousand, three hundred eighty-six".