40180061 has 8 divisors (see below), whose sum is σ = 43916544. Its totient is φ = 36596160.

The previous prime is 40180037. The next prime is 40180069. The reversal of 40180061 is 16008104.

40180061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40180061 - 2¹⁰ = 40179037 is a prime.

It is a super-2 number, since 2×40180061² = 3228874603927442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40180069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37595 + ... + 38648.

It is an arithmetic number, because the mean of its divisors is an integer number (5489568).

Almost surely, 2^40180061 is an apocalyptic number.

It is an amenable number.

40180061 is a deficient number, since it is larger than the sum of its proper divisors (3736483).

40180061 is a wasteful number, since it uses less digits than its factorization.

40180061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76291.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 40180061 is about 6338.7744083537. The cubic root of 40180061 is about 342.5075878760.

Adding to 40180061 its reverse (16008104), we get a palindrome (56188165).

The spelling of 40180061 in words is "forty million, one hundred eighty thousand, sixty-one".