40452343420 has 96 divisors (see below), whose sum is σ = 90569041920. Its totient is φ = 15144729600.

The previous prime is 40452343417. The next prime is 40452343427. The reversal of 40452343420 is 2434325404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40452343427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4101495 + ... + 4111345.

It is an arithmetic number, because the mean of its divisors is an integer number (943427520).

Almost surely, 2^40452343420 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 40452343420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45284520960).

40452343420 is an abundant number, since it is smaller than the sum of its proper divisors (50116698500).

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

40452343420 is a wasteful number, since it uses less digits than its factorization.

40452343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10075 (or 10073 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 40452343420 its reverse (2434325404), we get a palindrome (42886668824).

The spelling of 40452343420 in words is "forty billion, four hundred fifty-two million, three hundred forty-three thousand, four hundred twenty".