4000243430 has 16 divisors (see below), whose sum is σ = 7211860704. Its totient is φ = 1597559040.

The previous prime is 4000243411. The next prime is 4000243439. The reversal of 4000243430 is 343420004.

It is a happy number.

It is a super-3 number, since 3×4000243430³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000243439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310667 + ... + 323286.

It is an arithmetic number, because the mean of its divisors is an integer number (450741294).

Almost surely, 2^4000243430 is an apocalyptic number.

4000243430 is a deficient number, since it is larger than the sum of its proper divisors (3211617274).

4000243430 is a wasteful number, since it uses less digits than its factorization.

4000243430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634591.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4000243430 is about 63247.4776572157. The cubic root of 4000243430 is about 1587.4332530682.

Adding to 4000243430 its reverse (343420004), we get a palindrome (4343663434).

The spelling of 4000243430 in words is "four billion, two hundred forty-three thousand, four hundred thirty".