40242345 has 64 divisors (see below), whose sum is σ = 76978944. Its totient is φ = 17694720.

The previous prime is 40242337. The next prime is 40242403. The reversal of 40242345 is 54324204.

It is not a de Polignac number, because 40242345 - 2³ = 40242337 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 156457 + ... + 156713.

It is an arithmetic number, because the mean of its divisors is an integer number (1202796).

Almost surely, 2^40242345 is an apocalyptic number.

It is an amenable number.

40242345 is a deficient number, since it is larger than the sum of its proper divisors (36736599).

40242345 is a wasteful number, since it uses less digits than its factorization.

40242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40242345 is about 6343.6854430213. The cubic root of 40242345 is about 342.6844727021.

Adding to 40242345 its reverse (54324204), we get a palindrome (94566549).

The spelling of 40242345 in words is "forty million, two hundred forty-two thousand, three hundred forty-five".