162643964 has 48 divisors (see below), whose sum is σ = 345643200. Its totient is φ = 65372160.

The previous prime is 162643963. The next prime is 162643969. The reversal of 162643964 is 469346261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162643961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213344 + ... + 214104.

It is an arithmetic number, because the mean of its divisors is an integer number (7200900).

Almost surely, 2^162643964 is an apocalyptic number.

162643964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162643964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172821600).

162643964 is an abundant number, since it is smaller than the sum of its proper divisors (182999236).

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

162643964 is a wasteful number, since it uses less digits than its factorization.

162643964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1236 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 162643964 is about 12753.1942665357. The cubic root of 162643964 is about 545.8575440005.

The spelling of 162643964 in words is "one hundred sixty-two million, six hundred forty-three thousand, nine hundred sixty-four".