40493728046 has 4 divisors (see below), whose sum is σ = 60740592072. Its totient is φ = 20246864022.

The previous prime is 40493728031. The next prime is 40493728049. The reversal of 40493728046 is 64082739404.

It is a happy number.

40493728046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40493728046² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40493728049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123432010 + ... + 10123432013.

It is an arithmetic number, because the mean of its divisors is an integer number (15185148018).

Almost surely, 2^40493728046 is an apocalyptic number.

40493728046 is a deficient number, since it is larger than the sum of its proper divisors (20246864026).

40493728046 is a wasteful number, since it uses less digits than its factorization.

40493728046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20246864025.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 40493728046 in words is "forty billion, four hundred ninety-three million, seven hundred twenty-eight thousand, forty-six".