40240455 has 16 divisors (see below), whose sum is σ = 67184640. Its totient is φ = 20528288.

The previous prime is 40240451. The next prime is 40240471. The reversal of 40240455 is 55404204.

It is a cyclic number.

It is not a de Polignac number, because 40240455 - 2² = 40240451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57975 + ... + 58664.

It is an arithmetic number, because the mean of its divisors is an integer number (4199040).

Almost surely, 2^40240455 is an apocalyptic number.

40240455 is a deficient number, since it is larger than the sum of its proper divisors (26944185).

40240455 is a wasteful number, since it uses less digits than its factorization.

40240455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116670.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40240455 is about 6343.5364742390. The cubic root of 40240455 is about 342.6791078408.

Adding to 40240455 its reverse (55404204), we get a palindrome (95644659).

The spelling of 40240455 in words is "forty million, two hundred forty thousand, four hundred fifty-five".