40026345 has 16 divisors (see below), whose sum is σ = 64193280. Its totient is φ = 21297024.

The previous prime is 40026323. The next prime is 40026359. The reversal of 40026345 is 54362004.

It is not a de Polignac number, because 40026345 - 2⁸ = 40026089 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 3936 + ... + 9774.

It is an arithmetic number, because the mean of its divisors is an integer number (4012080).

Almost surely, 2^40026345 is an apocalyptic number.

It is an amenable number.

40026345 is a deficient number, since it is larger than the sum of its proper divisors (24166935).

40026345 is a wasteful number, since it uses less digits than its factorization.

40026345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40026345 is about 6326.6377326349. The cubic root of 40026345 is about 342.0702550516.

Adding to 40026345 its reverse (54362004), we get a palindrome (94388349).

The spelling of 40026345 in words is "forty million, twenty-six thousand, three hundred forty-five".