40161064 has 16 divisors (see below), whose sum is σ = 76579200. Its totient is φ = 19739952.

The previous prime is 40161061. The next prime is 40161091. The reversal of 40161064 is 46016104.

It is a super-2 number, since 2×40161064² = 3225822123224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40161061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42072 + ... + 43015.

It is an arithmetic number, because the mean of its divisors is an integer number (4786200).

Almost surely, 2^40161064 is an apocalyptic number.

It is an amenable number.

40161064 is a deficient number, since it is larger than the sum of its proper divisors (36418136).

40161064 is a wasteful number, since it uses less digits than its factorization.

40161064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85152 (or 85148 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40161064 is about 6337.2757554015. The cubic root of 40161064 is about 342.4536005484.

Adding to 40161064 its reverse (46016104), we get a palindrome (86177168).

The spelling of 40161064 in words is "forty million, one hundred sixty-one thousand, sixty-four".