40615990438 has 8 divisors (see below), whose sum is σ = 60930393120. Its totient is φ = 20305859400.

The previous prime is 40615990411. The next prime is 40615990511. The reversal of 40615990438 is 83409951604.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 40615990391 and 40615990400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044033 + ... + 1082236.

It is an arithmetic number, because the mean of its divisors is an integer number (7616299140).

Almost surely, 2^40615990438 is an apocalyptic number.

40615990438 is a deficient number, since it is larger than the sum of its proper divisors (20314402682).

40615990438 is a wasteful number, since it uses less digits than its factorization.

40615990438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135822.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 40615990438 in words is "forty billion, six hundred fifteen million, nine hundred ninety thousand, four hundred thirty-eight".