40324855428 has 648 divisors, whose sum is σ = 135344311200. Its totient is φ = 10341302400.

The previous prime is 40324855421. The next prime is 40324855433. The reversal of 40324855428 is 82455842304.

40324855428 is a `hidden beast` number, since 4 + 0 + 3 + 24 + 85 + 542 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (40324855421) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1300801773 + ... + 1300801803.

Almost surely, 2^40324855428 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 40324855428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67672155600).

40324855428 is an abundant number, since it is smaller than the sum of its proper divisors (95019455772).

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

40324855428 is a wasteful number, since it uses less digits than its factorization.

40324855428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 40324855428 in words is "forty billion, three hundred twenty-four million, eight hundred fifty-five thousand, four hundred twenty-eight".