162222378 has 16 divisors (see below), whose sum is σ = 324993600. Its totient is φ = 53982656.

The previous prime is 162222373. The next prime is 162222383. The reversal of 162222378 is 873222261.

It is an interprime number because it is at equal distance from previous prime (162222373) and next prime (162222383).

It is not an unprimeable number, because it can be changed into a prime (162222373) 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 7 ways as a sum of consecutive naturals, for example, 18975 + ... + 26162.

It is an arithmetic number, because the mean of its divisors is an integer number (20312100).

Almost surely, 2^162222378 is an apocalyptic number.

162222378 is an abundant number, since it is smaller than the sum of its proper divisors (162771222).

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

162222378 is a wasteful number, since it uses less digits than its factorization.

162222378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45741.

The product of its digits is 16128, while the sum is 33.

The square root of 162222378 is about 12736.6548983632. The cubic root of 162222378 is about 545.3855006191.

The spelling of 162222378 in words is "one hundred sixty-two million, two hundred twenty-two thousand, three hundred seventy-eight".