163433340 has 144 divisors (see below), whose sum is σ = 570984960. Its totient is φ = 37065600.

The previous prime is 163433323. The next prime is 163433341. The reversal of 163433340 is 43334361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163433341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189831 + ... + 190689.

Almost surely, 2^163433340 is an apocalyptic number.

163433340 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 163433340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285492480).

163433340 is an abundant number, since it is smaller than the sum of its proper divisors (407551620).

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

163433340 is a wasteful number, since it uses less digits than its factorization.

163433340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 163433340 is about 12784.1049745377. The cubic root of 163433340 is about 546.7392072750.

It can be divided in two parts, 16343 and 3340, that added together give a 9-th power (19683 = 3⁹).

The spelling of 163433340 in words is "one hundred sixty-three million, four hundred thirty-three thousand, three hundred forty".