40203421430 has 8 divisors (see below), whose sum is σ = 72366158592. Its totient is φ = 16081368568.

The previous prime is 40203421399. The next prime is 40203421471. The reversal of 40203421430 is 3412430204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40203421396 and 40203421405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010171062 + ... + 2010171081.

It is an arithmetic number, because the mean of its divisors is an integer number (9045769824).

Almost surely, 2^40203421430 is an apocalyptic number.

40203421430 is a deficient number, since it is larger than the sum of its proper divisors (32162737162).

40203421430 is a wasteful number, since it uses less digits than its factorization.

40203421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020342150.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40203421430 its reverse (3412430204), we get a palindrome (43615851634).

The spelling of 40203421430 in words is "forty billion, two hundred three million, four hundred twenty-one thousand, four hundred thirty".