40530061 has 16 divisors (see below), whose sum is σ = 47956608. Its totient is φ = 33768000.

The previous prime is 40530043. The next prime is 40530067. The reversal of 40530061 is 16003504.

It is a cyclic number.

It is not a de Polignac number, because 40530061 - 2¹¹ = 40528013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40530067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20655 + ... + 22531.

It is an arithmetic number, because the mean of its divisors is an integer number (2997288).

Almost surely, 2^40530061 is an apocalyptic number.

It is an amenable number.

40530061 is a deficient number, since it is larger than the sum of its proper divisors (7426547).

40530061 is a wasteful number, since it uses less digits than its factorization.

40530061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40530061 is about 6366.3224077956. The cubic root of 40530061 is about 343.4992178141.

Adding to 40530061 its reverse (16003504), we get a palindrome (56533565).

The spelling of 40530061 in words is "forty million, five hundred thirty thousand, sixty-one".