385038550 has 24 divisors (see below), whose sum is σ = 771263136. Its totient is φ = 142167840.

The previous prime is 385038529. The next prime is 385038551. The reversal of 385038550 is 55830583.

It is a super-2 number, since 2×385038550² = 296509369972205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385038551) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 295534 + ... + 296833.

It is an arithmetic number, because the mean of its divisors is an integer number (32135964).

Almost surely, 2^385038550 is an apocalyptic number.

385038550 is an abundant number, since it is smaller than the sum of its proper divisors (386224586).

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

385038550 is a wasteful number, since it uses less digits than its factorization.

385038550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592392 (or 592387 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 385038550 is about 19622.3991907208. The cubic root of 385038550 is about 727.5029148492.

The spelling of 385038550 in words is "three hundred eighty-five million, thirty-eight thousand, five hundred fifty".