40050681 has 8 divisors (see below), whose sum is σ = 58255584. Its totient is φ = 24273120.

The previous prime is 40050679. The next prime is 40050707. The reversal of 40050681 is 18605004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40050681 - 2¹ = 40050679 is a prime.

It is a super-2 number, since 2×40050681² = 3208114097127522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40050601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606796 + ... + 606861.

It is an arithmetic number, because the mean of its divisors is an integer number (7281948).

Almost surely, 2^40050681 is an apocalyptic number.

It is an amenable number.

40050681 is a deficient number, since it is larger than the sum of its proper divisors (18204903).

40050681 is a wasteful number, since it uses less digits than its factorization.

40050681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213671.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 40050681 is about 6328.5607368500. The cubic root of 40050681 is about 342.1395671940.

Adding to 40050681 its reverse (18605004), we get a palindrome (58655685).

The spelling of 40050681 in words is "forty million, fifty thousand, six hundred eighty-one".