40240351 has 2 divisors, whose sum is σ = 40240352. Its totient is φ = 40240350.

The previous prime is 40240339. The next prime is 40240357. The reversal of 40240351 is 15304204.

40240351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40240351 - 2⁷ = 40240223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40240357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120175 + 20120176.

It is an arithmetic number, because the mean of its divisors is an integer number (20120176).

Almost surely, 2^40240351 is an apocalyptic number.

40240351 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240351 is an equidigital number, since it uses as much as digits as its factorization.

40240351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40240351 is about 6343.5282769134. The cubic root of 40240351 is about 342.6788126266.

Adding to 40240351 its reverse (15304204), we get a palindrome (55544555).

It can be divided in two parts, 4024035 and 1, that added together give a square (4024036 = 2006²).

The spelling of 40240351 in words is "forty million, two hundred forty thousand, three hundred fifty-one".