385552439 has 8 divisors (see below), whose sum is σ = 387381120. Its totient is φ = 383728896.

The previous prime is 385552429. The next prime is 385552459. The reversal of 385552439 is 934255583.

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 385552439 - 2¹² = 385548343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385552439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385552429) 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, 247487 + ... + 249039.

It is an arithmetic number, because the mean of its divisors is an integer number (48422640).

Almost surely, 2^385552439 is an apocalyptic number.

385552439 is a deficient number, since it is larger than the sum of its proper divisors (1828681).

385552439 is a wasteful number, since it uses less digits than its factorization.

385552439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569.

The product of its digits is 648000, while the sum is 44.

The square root of 385552439 is about 19635.4892732521. The cubic root of 385552439 is about 727.8264231899.

The spelling of 385552439 in words is "three hundred eighty-five million, five hundred fifty-two thousand, four hundred thirty-nine".