1162218438 has 12 divisors (see below), whose sum is σ = 2518139988. Its totient is φ = 387406140.

The previous prime is 1162218437. The next prime is 1162218469. The reversal of 1162218438 is 8348122611.

1162218438 is a `hidden beast` number, since 1 + 1 + 6 + 2 + 218 + 438 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162218437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32283828 + ... + 32283863.

It is an arithmetic number, because the mean of its divisors is an integer number (209844999).

Almost surely, 2^1162218438 is an apocalyptic number.

1162218438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1162218438 is an abundant number, since it is smaller than the sum of its proper divisors (1355921550).

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

1162218438 is a wasteful number, since it uses less digits than its factorization.

1162218438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64567699 (or 64567696 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1162218438 is about 34091.3249669179. The cubic root of 1162218438 is about 1051.3869616914.

The spelling of 1162218438 in words is "one billion, one hundred sixty-two million, two hundred eighteen thousand, four hundred thirty-eight".