40000642352 has 20 divisors (see below), whose sum is σ = 84546812616. Its totient is φ = 18182110080.

The previous prime is 40000642333. The next prime is 40000642361. The reversal of 40000642352 is 25324600004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113638013 + ... + 113638364.

Almost surely, 2^40000642352 is an apocalyptic number.

It is an amenable number.

40000642352 is an abundant number, since it is smaller than the sum of its proper divisors (44546170264).

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

40000642352 is a wasteful number, since it uses less digits than its factorization.

40000642352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227276396 (or 227276390 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 40000642352 in words is "forty billion, six hundred forty-two thousand, three hundred fifty-two".