40185741 has 8 divisors (see below), whose sum is σ = 56401120. Its totient is φ = 25380432.

The previous prime is 40185731. The next prime is 40185767. The reversal of 40185741 is 14758104.

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

It is not a de Polignac number, because 40185741 - 2⁵ = 40185709 is a prime.

It is a super-2 number, since 2×40185741² = 3229787559438162, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40185699 and 40185708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40185701) 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, 352450 + ... + 352563.

It is an arithmetic number, because the mean of its divisors is an integer number (7050140).

Almost surely, 2^40185741 is an apocalyptic number.

It is an amenable number.

40185741 is a deficient number, since it is larger than the sum of its proper divisors (16215379).

40185741 is a wasteful number, since it uses less digits than its factorization.

40185741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705035.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 40185741 is about 6339.2224286580. Note that the first 3 decimals coincide. The cubic root of 40185741 is about 342.5237264896.

The spelling of 40185741 in words is "forty million, one hundred eighty-five thousand, seven hundred forty-one".