40627387 has 2 divisors, whose sum is σ = 40627388. Its totient is φ = 40627386.

The previous prime is 40627381. The next prime is 40627429. The reversal of 40627387 is 78372604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40627387 is a prime.

It is not a weakly prime, because it can be changed into another prime (40627381) 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, 20313693 + 20313694.

It is an arithmetic number, because the mean of its divisors is an integer number (20313694).

Almost surely, 2^40627387 is an apocalyptic number.

40627387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40627387 is an equidigital number, since it uses as much as digits as its factorization.

40627387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 40627387 is about 6373.9616409263. The cubic root of 40627387 is about 343.7739495380.

It can be divided in two parts, 40627 and 387, that added together give a palindrome (41014).

The spelling of 40627387 in words is "forty million, six hundred twenty-seven thousand, three hundred eighty-seven".