40620263 has 2 divisors, whose sum is σ = 40620264. Its totient is φ = 40620262.

The previous prime is 40620247. The next prime is 40620269. The reversal of 40620263 is 36202604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40620263 - 2⁴ = 40620247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40620269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310131 + 20310132.

It is an arithmetic number, because the mean of its divisors is an integer number (20310132).

Almost surely, 2^40620263 is an apocalyptic number.

40620263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620263 is an equidigital number, since it uses as much as digits as its factorization.

40620263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 40620263 is about 6373.4027803050. The cubic root of 40620263 is about 343.7538548108.

Adding to 40620263 its reverse (36202604), we get a palindrome (76822867).

The spelling of 40620263 in words is "forty million, six hundred twenty thousand, two hundred sixty-three".