385777392 has 480 divisors, whose sum is σ = 1443907584. Its totient is φ = 87091200.

The previous prime is 385777373. The next prime is 385777411. The reversal of 385777392 is 293777583.

It is an interprime number because it is at equal distance from previous prime (385777373) and next prime (385777411).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10426398 + ... + 10426434.

Almost surely, 2^385777392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385777392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721953792).

385777392 is an abundant number, since it is smaller than the sum of its proper divisors (1058130192).

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

385777392 is a wasteful number, since it uses less digits than its factorization.

385777392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 104 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 51.

The square root of 385777392 is about 19641.2166629260. The cubic root of 385777392 is about 727.9679473067.

It can be divided in two parts, 385 and 777392, that added together give a palindrome (777777).

The spelling of 385777392 in words is "three hundred eighty-five million, seven hundred seventy-seven thousand, three hundred ninety-two".