40932081 has 16 divisors (see below), whose sum is σ = 60739200. Its totient is φ = 27243504.

The previous prime is 40932077. The next prime is 40932113. The reversal of 40932081 is 18023904.

It is not a de Polignac number, because 40932081 - 2² = 40932077 is a prime.

It is a super-2 number, since 2×40932081² = 3350870509981122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40932011) 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, 29260 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (3796200).

Almost surely, 2^40932081 is an apocalyptic number.

It is an amenable number.

40932081 is a deficient number, since it is larger than the sum of its proper divisors (19807119).

40932081 is a wasteful number, since it uses less digits than its factorization.

40932081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40932081 is about 6397.8184563177. The cubic root of 40932081 is about 344.6312127311.

Adding to 40932081 its reverse (18023904), we get a palindrome (58955985).

The spelling of 40932081 in words is "forty million, nine hundred thirty-two thousand, eighty-one".