40203433212 has 96 divisors (see below), whose sum is σ = 104181977088. Its totient is φ = 12010742784.

The previous prime is 40203433201. The next prime is 40203433213. The reversal of 40203433212 is 21233430204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203433213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298093 + ... + 411419.

It is an arithmetic number, because the mean of its divisors is an integer number (1085228928).

Almost surely, 2^40203433212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40203433212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52090988544).

40203433212 is an abundant number, since it is smaller than the sum of its proper divisors (63978543876).

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

40203433212 is a wasteful number, since it uses less digits than its factorization.

40203433212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113435 (or 113433 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40203433212 its reverse (21233430204), we get a palindrome (61436863416).

The spelling of 40203433212 in words is "forty billion, two hundred three million, four hundred thirty-three thousand, two hundred twelve".