38158790440 has 64 divisors (see below), whose sum is σ = 90323424000. Its totient is φ = 14487379200.

The previous prime is 38158790437. The next prime is 38158790471. The reversal of 38158790440 is 4409785183.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210336 + ... + 347215.

It is an arithmetic number, because the mean of its divisors is an integer number (1411303500).

Almost surely, 2^38158790440 is an apocalyptic number.

It is an amenable number.

38158790440 is an abundant number, since it is smaller than the sum of its proper divisors (52164633560).

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

38158790440 is a wasteful number, since it uses less digits than its factorization.

38158790440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557650 (or 557646 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 38158790440 in words is "thirty-eight billion, one hundred fifty-eight million, seven hundred ninety thousand, four hundred forty".