385540044488 has 16 divisors (see below), whose sum is σ = 722909165580. Its totient is φ = 192764267008.

The previous prime is 385540044451. The next prime is 385540044517. The reversal of 385540044488 is 884440045583.

It can be written as a sum of positive squares in 2 ways, for example, as 379478176324 + 6061868164 = 616018^2 + 77858^2 .

It is a super-2 number, since 2×385540044488² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427745 + ... + 976752.

Almost surely, 2^385540044488 is an apocalyptic number.

It is an amenable number.

385540044488 is a deficient number, since it is larger than the sum of its proper divisors (337369121092).

385540044488 is a wasteful number, since it uses less digits than its factorization.

385540044488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438816 (or 1438812 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 53.

The spelling of 385540044488 in words is "three hundred eighty-five billion, five hundred forty million, forty-four thousand, four hundred eighty-eight".