36438816 has 24 divisors (see below), whose sum is σ = 95652144. Its totient is φ = 12146240.

The previous prime is 36438781. The next prime is 36438839. The reversal of 36438816 is 61883463.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×36438816² = 2655574622963712, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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, 189690 + ... + 189881.

It is an arithmetic number, because the mean of its divisors is an integer number (3985506).

Almost surely, 2^36438816 is an apocalyptic number.

It is an amenable number.

36438816 is an abundant number, since it is smaller than the sum of its proper divisors (59213328).

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

36438816 is a wasteful number, since it uses less digits than its factorization.

36438816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379584 (or 379576 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 36438816 is about 6036.4572391428. The cubic root of 36438816 is about 331.5289201262.

The spelling of 36438816 in words is "thirty-six million, four hundred thirty-eight thousand, eight hundred sixteen".