163836040 has 16 divisors (see below), whose sum is σ = 368631180. Its totient is φ = 65534400.

The previous prime is 163836011. The next prime is 163836083. The reversal of 163836040 is 40638361.

It can be written as a sum of positive squares in 2 ways, for example, as 148011556 + 15824484 = 12166^2 + 3978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163835993 and 163836011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047911 + ... + 2047990.

Almost surely, 2^163836040 is an apocalyptic number.

163836040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163836040 is an abundant number, since it is smaller than the sum of its proper divisors (204795140).

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

163836040 is a wasteful number, since it uses less digits than its factorization.

163836040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095912 (or 4095908 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 163836040 is about 12799.8453115653. The cubic root of 163836040 is about 547.1878943693.

It can be divided in two parts, 1638360 and 40, that added together give a square (1638400 = 1280²).

The spelling of 163836040 in words is "one hundred sixty-three million, eight hundred thirty-six thousand, forty".