36438320 has 20 divisors (see below), whose sum is σ = 84719280. Its totient is φ = 14575296.

The previous prime is 36438307. The next prime is 36438323. The reversal of 36438320 is 2383463.

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

It is not an unprimeable number, because it can be changed into a prime (36438323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227660 + ... + 227819.

It is an arithmetic number, because the mean of its divisors is an integer number (4235964).

Almost surely, 2^36438320 is an apocalyptic number.

It is an amenable number.

36438320 is an abundant number, since it is smaller than the sum of its proper divisors (48280960).

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

36438320 is a wasteful number, since it uses less digits than its factorization.

36438320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455492 (or 455486 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 36438320 is about 6036.4161553027. The cubic root of 36438320 is about 331.5274158778.

The spelling of 36438320 in words is "thirty-six million, four hundred thirty-eight thousand, three hundred twenty".