40160000 has 90 divisors (see below), whose sum is σ = 100570932. Its totient is φ = 16000000.

The previous prime is 40159981. The next prime is 40160011. The reversal of 40160000 is 6104.

It is a super-2 number, since 2×40160000² = 3225651200000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159875 + ... + 160125.

Almost surely, 2^40160000 is an apocalyptic number.

40160000 is a gapful number since it is divisible by the number (40) 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 40160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50285466).

40160000 is an abundant number, since it is smaller than the sum of its proper divisors (60410932).

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

40160000 is an frugal number, since it uses more digits than its factorization.

40160000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40160000 is about 6337.1918071019. The cubic root of 40160000 is about 342.4505762772.

Adding to 40160000 its reverse (6104), we get a palindrome (40166104).

The spelling of 40160000 in words is "forty million, one hundred sixty thousand".