40662015 has 16 divisors (see below), whose sum is σ = 65138688. Its totient is φ = 21659936.

The previous prime is 40661993. The next prime is 40662019. The reversal of 40662015 is 51026604.

It is a cyclic number.

It is not a de Polignac number, because 40662015 - 2⁵ = 40661983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40662019) 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, 21394 + ... + 23216.

It is an arithmetic number, because the mean of its divisors is an integer number (4071168).

Almost surely, 2^40662015 is an apocalyptic number.

40662015 is a deficient number, since it is larger than the sum of its proper divisors (24476673).

40662015 is a wasteful number, since it uses less digits than its factorization.

40662015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 40662015 is about 6376.6774263718. The cubic root of 40662015 is about 343.8715915860.

Adding to 40662015 its reverse (51026604), we get a palindrome (91688619).

The spelling of 40662015 in words is "forty million, six hundred sixty-two thousand, fifteen".