163740936 has 48 divisors (see below), whose sum is σ = 432054000. Its totient is φ = 51704928.

The previous prime is 163740919. The next prime is 163740949. The reversal of 163740936 is 639047361.

It is a super-2 number, since 2×163740936² = 53622188244312192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163740894 and 163740903.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (9001125).

Almost surely, 2^163740936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163740936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216027000).

163740936 is an abundant number, since it is smaller than the sum of its proper divisors (268313064).

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

163740936 is a wasteful number, since it uses less digits than its factorization.

163740936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18946 (or 18923 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 163740936 is about 12796.1297273824. The cubic root of 163740936 is about 547.0819961592.

The spelling of 163740936 in words is "one hundred sixty-three million, seven hundred forty thousand, nine hundred thirty-six".