6138390 has 16 divisors (see below), whose sum is σ = 14732208. Its totient is φ = 1636896.

The previous prime is 6138383. The next prime is 6138409. The reversal of 6138390 is 938316.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 204613 = 6138390 / (6 + 1 + 3 + 8 + 3 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102277 + ... + 102336.

It is an arithmetic number, because the mean of its divisors is an integer number (920763).

Almost surely, 2^6138390 is an apocalyptic number.

6138390 is an abundant number, since it is smaller than the sum of its proper divisors (8593818).

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

6138390 is a wasteful number, since it uses less digits than its factorization.

6138390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204623.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6138390 is about 2477.5774458127. The cubic root of 6138390 is about 183.0985166344.

The spelling of 6138390 in words is "six million, one hundred thirty-eight thousand, three hundred ninety".