3138429 has 16 divisors (see below), whose sum is σ = 4812800. Its totient is φ = 1782000.

The previous prime is 3138403. The next prime is 3138449. The reversal of 3138429 is 9248313.

It is not a de Polignac number, because 3138429 - 2⁵ = 3138397 is a prime.

It is a Duffinian number.

3138429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3138396 and 3138405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3804 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (300800).

Almost surely, 2^3138429 is an apocalyptic number.

It is an amenable number.

3138429 is a deficient number, since it is larger than the sum of its proper divisors (1674371).

3138429 is a wasteful number, since it uses less digits than its factorization.

3138429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 5184, while the sum is 30.

The square root of 3138429 is about 1771.5611759124. The cubic root of 3138429 is about 146.4100096921.

It can be divided in two parts, 31384 and 29, that added together give a palindrome (31413).

The spelling of 3138429 in words is "three million, one hundred thirty-eight thousand, four hundred twenty-nine".