40238430 has 32 divisors (see below), whose sum is σ = 96854400. Its totient is φ = 10698912.

The previous prime is 40238423. The next prime is 40238437. The reversal of 40238430 is 3483204.

It is an interprime number because it is at equal distance from previous prime (40238423) and next prime (40238437).

It is a self number, because there is not a number n which added to its sum of digits gives 40238430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238437) 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 in 15 ways as a sum of consecutive naturals, for example, 9601 + ... + 13139.

It is an arithmetic number, because the mean of its divisors is an integer number (3026700).

Almost surely, 2^40238430 is an apocalyptic number.

40238430 is an abundant number, since it is smaller than the sum of its proper divisors (56615970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40238430 is a wasteful number, since it uses less digits than its factorization.

40238430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40238430 is about 6343.3768609472. The cubic root of 40238430 is about 342.6733595887.

The spelling of 40238430 in words is "forty million, two hundred thirty-eight thousand, four hundred thirty".