163442000 has 80 divisors (see below), whose sum is σ = 401117184. Its totient is φ = 64400000.

The previous prime is 163441991. The next prime is 163442033. The reversal of 163442000 is 244361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141425 + ... + 142575.

Almost surely, 2^163442000 is an apocalyptic number.

163442000 is a gapful number since it is divisible by the number (10) 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 163442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200558592).

163442000 is an abundant number, since it is smaller than the sum of its proper divisors (237675184).

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

163442000 is a wasteful number, since it uses less digits than its factorization.

163442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 163442000 is about 12784.4436719006. The cubic root of 163442000 is about 546.7488639703.

Adding to 163442000 its reverse (244361), we get a palindrome (163686361).

It can be divided in two parts, 1634 and 42000, that added together give a palindrome (43634).

The spelling of 163442000 in words is "one hundred sixty-three million, four hundred forty-two thousand".