40508415 has 12 divisors (see below), whose sum is σ = 70214664. Its totient is φ = 21604464.

The previous prime is 40508371. The next prime is 40508417. The reversal of 40508415 is 51480504.

It is not a de Polignac number, because 40508415 - 2¹⁴ = 40492031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40508417) 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 11 ways as a sum of consecutive naturals, for example, 450049 + ... + 450138.

It is an arithmetic number, because the mean of its divisors is an integer number (5851222).

Almost surely, 2^40508415 is an apocalyptic number.

40508415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40508415 is a deficient number, since it is larger than the sum of its proper divisors (29706249).

40508415 is a wasteful number, since it uses less digits than its factorization.

40508415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900198 (or 900195 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 40508415 is about 6364.6221411801. The cubic root of 40508415 is about 343.4380557370.

Adding to 40508415 its reverse (51480504), we get a palindrome (91988919).

The spelling of 40508415 in words is "forty million, five hundred eight thousand, four hundred fifteen".