6138406 has 16 divisors (see below), whose sum is σ = 9840960. Its totient is φ = 2863080.

The previous prime is 6138383. The next prime is 6138409. The reversal of 6138406 is 6048316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138409) 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, 1341 + ... + 3751.

It is an arithmetic number, because the mean of its divisors is an integer number (615060).

Almost surely, 2^6138406 is an apocalyptic number.

6138406 is a deficient number, since it is larger than the sum of its proper divisors (3702554).

6138406 is a wasteful number, since it uses less digits than its factorization.

6138406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6138406 is about 2477.5806747713. The cubic root of 6138406 is about 183.0986757192.

It can be divided in two parts, 6138 and 406, that multiplied together give a triangular number (2492028 = T₂₂₃₂).

The spelling of 6138406 in words is "six million, one hundred thirty-eight thousand, four hundred six".