40731401 has 8 divisors (see below), whose sum is σ = 41601600. Its totient is φ = 39865072.

The previous prime is 40731389. The next prime is 40731403. The reversal of 40731401 is 10413704.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40731401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40731403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31106 + ... + 32388.

It is an arithmetic number, because the mean of its divisors is an integer number (5200200).

Almost surely, 2^40731401 is an apocalyptic number.

It is an amenable number.

40731401 is a deficient number, since it is larger than the sum of its proper divisors (870199).

40731401 is a wasteful number, since it uses less digits than its factorization.

40731401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 40731401 is about 6382.1157150274. The cubic root of 40731401 is about 344.0670755493.

The spelling of 40731401 in words is "forty million, seven hundred thirty-one thousand, four hundred one".