40161011 has 16 divisors (see below), whose sum is σ = 45163008. Its totient is φ = 35397600.

The previous prime is 40160999. The next prime is 40161019. The reversal of 40161011 is 11016104.

It is a de Polignac number, because none of the positive numbers 2^k-40161011 is a prime.

It is a super-2 number, since 2×40161011² = 3225813609084242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40161019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92966 + ... + 93396.

It is an arithmetic number, because the mean of its divisors is an integer number (2822688).

Almost surely, 2^40161011 is an apocalyptic number.

40161011 is a deficient number, since it is larger than the sum of its proper divisors (5001997).

40161011 is a wasteful number, since it uses less digits than its factorization.

40161011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 40161011 is about 6337.2715737926. The cubic root of 40161011 is about 342.4534499046.

Adding to 40161011 its reverse (11016104), we get a palindrome (51177115).

It can be divided in two parts, 40 and 161011, that added together give a 5-th power (161051 = 11⁵).

The spelling of 40161011 in words is "forty million, one hundred sixty-one thousand, eleven".