40523445424 has 80 divisors (see below), whose sum is σ = 98019369216. Its totient is φ = 15767136000.

The previous prime is 40523445373. The next prime is 40523445497. The reversal of 40523445424 is 42454432504.

40523445424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910899 + ... + 954349.

Almost surely, 2^40523445424 is an apocalyptic number.

40523445424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40523445424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49009684608).

40523445424 is an abundant number, since it is smaller than the sum of its proper divisors (57495923792).

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

40523445424 is a wasteful number, since it uses less digits than its factorization.

40523445424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44234 (or 44228 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 40523445424 its reverse (42454432504), we get a palindrome (82977877928).

The spelling of 40523445424 in words is "forty billion, five hundred twenty-three million, four hundred forty-five thousand, four hundred twenty-four".