36397218 has 64 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 9994560.

The previous prime is 36397199. The next prime is 36397241. The reversal of 36397218 is 81279363.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50263 + ... + 50981.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^36397218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36397218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43545600).

36397218 is an abundant number, since it is smaller than the sum of its proper divisors (50693982).

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

36397218 is a wasteful number, since it uses less digits than its factorization.

36397218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 54432, while the sum is 39.

The square root of 36397218 is about 6033.0106911889. The cubic root of 36397218 is about 331.4027159598.

The spelling of 36397218 in words is "thirty-six million, three hundred ninety-seven thousand, two hundred eighteen".