40420263 has 16 divisors (see below), whose sum is σ = 58345056. Its totient is φ = 24743040.

The previous prime is 40420241. The next prime is 40420267. The reversal of 40420263 is 36202404.

40420263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40420263 - 2⁵ = 40420231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420267) 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 in 15 ways as a sum of consecutive naturals, for example, 5053 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (3646566).

Almost surely, 2^40420263 is an apocalyptic number.

40420263 is a deficient number, since it is larger than the sum of its proper divisors (17924793).

40420263 is a wasteful number, since it uses less digits than its factorization.

40420263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40420263 is about 6357.6932137372. The cubic root of 40420263 is about 343.1887516621.

Adding to 40420263 its reverse (36202404), we get a palindrome (76622667).

The spelling of 40420263 in words is "forty million, four hundred twenty thousand, two hundred sixty-three".