40542015 has 16 divisors (see below), whose sum is σ = 65028096. Its totient is φ = 21568800.

The previous prime is 40542001. The next prime is 40542041. The reversal of 40542015 is 51024504.

It is not a de Polignac number, because 40542015 - 2⁵ = 40541983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40541982 and 40542000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3330 + ... + 9600.

It is an arithmetic number, because the mean of its divisors is an integer number (4064256).

Almost surely, 2^40542015 is an apocalyptic number.

40542015 is a deficient number, since it is larger than the sum of its proper divisors (24486081).

40542015 is a wasteful number, since it uses less digits than its factorization.

40542015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40542015 is about 6367.2611851565. The cubic root of 40542015 is about 343.5329852279.

Adding to 40542015 its reverse (51024504), we get a palindrome (91566519).

The spelling of 40542015 in words is "forty million, five hundred forty-two thousand, fifteen".