160386640 has 20 divisors (see below), whose sum is σ = 372899124. Its totient is φ = 64154624.

The previous prime is 160386631. The next prime is 160386641. The reversal of 160386640 is 46683061.

It can be written as a sum of positive squares in 2 ways, for example, as 65674816 + 94711824 = 8104^2 + 9732^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 160386596 and 160386605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160386641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002337 + ... + 1002496.

Almost surely, 2^160386640 is an apocalyptic number.

160386640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160386640 is an abundant number, since it is smaller than the sum of its proper divisors (212512484).

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

160386640 is a wasteful number, since it uses less digits than its factorization.

160386640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004846 (or 2004840 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 160386640 is about 12664.3847067278. The cubic root of 160386640 is about 543.3204642299.

The spelling of 160386640 in words is "one hundred sixty million, three hundred eighty-six thousand, six hundred forty".