40023585436 has 12 divisors (see below), whose sum is σ = 70175200312. Its totient is φ = 19973528208.

The previous prime is 40023585337. The next prime is 40023585439. The reversal of 40023585436 is 63458532004.

40023585436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023585439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9563775 + ... + 9567958.

Almost surely, 2^40023585436 is an apocalyptic number.

It is an amenable number.

40023585436 is a deficient number, since it is larger than the sum of its proper divisors (30151614876).

40023585436 is a wasteful number, since it uses less digits than its factorization.

40023585436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19132260 (or 19132258 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 40023585436 in words is "forty billion, twenty-three million, five hundred eighty-five thousand, four hundred thirty-six".