40681074 has 24 divisors (see below), whose sum is σ = 94646448. Its totient is φ = 11623080.

The previous prime is 40681073. The next prime is 40681159. The reversal of 40681074 is 47018604.

It is not an unprimeable number, because it can be changed into a prime (40681073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68892 + ... + 69479.

It is an arithmetic number, because the mean of its divisors is an integer number (3943602).

Almost surely, 2^40681074 is an apocalyptic number.

40681074 is an abundant number, since it is smaller than the sum of its proper divisors (53965374).

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

40681074 is a wasteful number, since it uses less digits than its factorization.

40681074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138390 (or 138383 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 40681074 is about 6378.1716816028. The cubic root of 40681074 is about 343.9253094105.

Adding to 40681074 its reverse (47018604), we get a palindrome (87699678).

The spelling of 40681074 in words is "forty million, six hundred eighty-one thousand, seventy-four".