40421543472 has 60 divisors (see below), whose sum is σ = 113327501040. Its totient is φ = 13449631104.

The previous prime is 40421543441. The next prime is 40421543489. The reversal of 40421543472 is 27434512404.

40421543472 is a `hidden beast` number, since 4 + 0 + 4 + 215 + 434 + 7 + 2 = 666.

40421543472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171772 + ... + 332187.

It is an arithmetic number, because the mean of its divisors is an integer number (1888791684).

Almost surely, 2^40421543472 is an apocalyptic number.

It is an amenable number.

40421543472 is an abundant number, since it is smaller than the sum of its proper divisors (72905957568).

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

40421543472 is a wasteful number, since it uses less digits than its factorization.

40421543472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504530 (or 504521 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 40421543472 in words is "forty billion, four hundred twenty-one million, five hundred forty-three thousand, four hundred seventy-two".