40238463 has 4 divisors (see below), whose sum is σ = 53651288. Its totient is φ = 26825640.

The previous prime is 40238461. The next prime is 40238479. The reversal of 40238463 is 36483204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40238463 - 2¹ = 40238461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40238463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6706408 + ... + 6706413.

It is an arithmetic number, because the mean of its divisors is an integer number (13412822).

Almost surely, 2^40238463 is an apocalyptic number.

40238463 is a deficient number, since it is larger than the sum of its proper divisors (13412825).

40238463 is a wasteful number, since it uses less digits than its factorization.

40238463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13412824.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 40238463 is about 6343.3794620849. The cubic root of 40238463 is about 342.6734532655.

The spelling of 40238463 in words is "forty million, two hundred thirty-eight thousand, four hundred sixty-three".