40309184432 has 160 divisors (see below), whose sum is σ = 94447669248. Its totient is φ = 16450560000.

The previous prime is 40309184423. The next prime is 40309184453. The reversal of 40309184432 is 23448190304.

40309184432 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 31 ways as a sum of consecutive naturals, for example, 6582332 + ... + 6588452.

Almost surely, 2^40309184432 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 40309184432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47223834624).

40309184432 is an abundant number, since it is smaller than the sum of its proper divisors (54138484816).

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

40309184432 is a wasteful number, since it uses less digits than its factorization.

40309184432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6259 (or 6253 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 40309184432 in words is "forty billion, three hundred nine million, one hundred eighty-four thousand, four hundred thirty-two".