3138407 has 8 divisors (see below), whose sum is σ = 3207600. Its totient is φ = 3070144.

The previous prime is 3138403. The next prime is 3138449. The reversal of 3138407 is 7048313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3138407 - 2² = 3138403 is a prime.

It is a super-3 number, since 3×3138407³ = 92736146616633315429, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138403) 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, 15833 + ... + 16029.

It is an arithmetic number, because the mean of its divisors is an integer number (400950).

Almost surely, 2^3138407 is an apocalyptic number.

3138407 is a deficient number, since it is larger than the sum of its proper divisors (69193).

3138407 is a wasteful number, since it uses less digits than its factorization.

3138407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 3138407 is about 1771.5549666889. The cubic root of 3138407 is about 146.4096675860.

The spelling of 3138407 in words is "three million, one hundred thirty-eight thousand, four hundred seven".