40615395 has 16 divisors (see below), whose sum is σ = 65269152. Its totient is φ = 21566720.

The previous prime is 40615391. The next prime is 40615403. The reversal of 40615395 is 59351604.

It is a happy number.

It is not a de Polignac number, because 40615395 - 2² = 40615391 is a prime.

It is a super-2 number, since 2×40615395² = 3299220622012050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40615391) by changing a digit.

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, 2316 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (4079322).

Almost surely, 2^40615395 is an apocalyptic number.

40615395 is a deficient number, since it is larger than the sum of its proper divisors (24653757).

40615395 is a wasteful number, since it uses less digits than its factorization.

40615395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11862.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 40615395 is about 6373.0208692582. The cubic root of 40615395 is about 343.7401222506.

Adding to 40615395 its reverse (59351604), we get a palindrome (99966999).

The spelling of 40615395 in words is "forty million, six hundred fifteen thousand, three hundred ninety-five".