40332031420 has 12 divisors (see below), whose sum is σ = 84697266024. Its totient is φ = 16132812560.

The previous prime is 40332031391. The next prime is 40332031447. The reversal of 40332031420 is 2413023304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40332031391 and 40332031400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008300766 + ... + 1008300805.

It is an arithmetic number, because the mean of its divisors is an integer number (7058105502).

Almost surely, 2^40332031420 is an apocalyptic number.

It is an amenable number.

40332031420 is an abundant number, since it is smaller than the sum of its proper divisors (44365234604).

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

40332031420 is a wasteful number, since it uses less digits than its factorization.

40332031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016601580 (or 2016601578 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 40332031420 its reverse (2413023304), we get a palindrome (42745054724).

The spelling of 40332031420 in words is "forty billion, three hundred thirty-two million, thirty-one thousand, four hundred twenty".