40308877021 has 8 divisors (see below), whose sum is σ = 48777128640. Its totient is φ = 32518085568.

The previous prime is 40308876977. The next prime is 40308877027. The reversal of 40308877021 is 12077880304.

40308877021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40308877021 - 2⁷ = 40308876893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40308877027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169364911 + ... + 169365148.

It is an arithmetic number, because the mean of its divisors is an integer number (6097141080).

Almost surely, 2^40308877021 is an apocalyptic number.

It is an amenable number.

40308877021 is a deficient number, since it is larger than the sum of its proper divisors (8468251619).

40308877021 is a wasteful number, since it uses less digits than its factorization.

40308877021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338730083.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 40308877021 in words is "forty billion, three hundred eight million, eight hundred seventy-seven thousand, twenty-one".