3855429 has 12 divisors (see below), whose sum is σ = 5587296. Its totient is φ = 2561832.

The previous prime is 3855419. The next prime is 3855431. The reversal of 3855429 is 9245583.

3855429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3855429 - 2¹³ = 3847237 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3855393 and 3855402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3504 + ... + 4470.

It is an arithmetic number, because the mean of its divisors is an integer number (465608).

Almost surely, 2^3855429 is an apocalyptic number.

It is an amenable number.

3855429 is a deficient number, since it is larger than the sum of its proper divisors (1731867).

3855429 is a wasteful number, since it uses less digits than its factorization.

3855429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 1413 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 3855429 is about 1963.5246369730. The cubic root of 3855429 is about 156.8041562526.

It can be divided in two parts, 38554 and 29, that added together give a palindrome (38583).

The spelling of 3855429 in words is "three million, eight hundred fifty-five thousand, four hundred twenty-nine".