40301431 has 2 divisors, whose sum is σ = 40301432. Its totient is φ = 40301430.

The previous prime is 40301423. The next prime is 40301453. The reversal of 40301431 is 13410304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40301431 - 2³ = 40301423 is a prime.

It is a super-2 number, since 2×40301431² = 3248410681295522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40301411) 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 as a sum of consecutive naturals, namely, 20150715 + 20150716.

It is an arithmetic number, because the mean of its divisors is an integer number (20150716).

Almost surely, 2^40301431 is an apocalyptic number.

40301431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40301431 is an equidigital number, since it uses as much as digits as its factorization.

40301431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40301431 is about 6348.3408068565. The cubic root of 40301431 is about 342.8521066803.

Adding to 40301431 its reverse (13410304), we get a palindrome (53711735).

The spelling of 40301431 in words is "forty million, three hundred one thousand, four hundred thirty-one".