40503323430 has 80 divisors (see below), whose sum is σ = 109630518624. Its totient is φ = 10729324800.

The previous prime is 40503323423. The next prime is 40503323453. The reversal of 40503323430 is 3432330504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40503323394 and 40503323403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43267 + ... + 287886.

Almost surely, 2^40503323430 is an apocalyptic number.

40503323430 is an abundant number, since it is smaller than the sum of its proper divisors (69127195194).

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

40503323430 is a wasteful number, since it uses less digits than its factorization.

40503323430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331323 (or 331314 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 40503323430 its reverse (3432330504), we get a palindrome (43935653934).

The spelling of 40503323430 in words is "forty billion, five hundred three million, three hundred twenty-three thousand, four hundred thirty".