6425438 has 16 divisors (see below), whose sum is σ = 9967104. Its totient is φ = 3104640.

The previous prime is 6425423. The next prime is 6425467. The reversal of 6425438 is 8345246.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10106 + ... + 10722.

It is an arithmetic number, because the mean of its divisors is an integer number (622944).

Almost surely, 2^6425438 is an apocalyptic number.

6425438 is a deficient number, since it is larger than the sum of its proper divisors (3541666).

6425438 is a wasteful number, since it uses less digits than its factorization.

6425438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its digits is 23040, while the sum is 32.

The square root of 6425438 is about 2534.8447684227. The cubic root of 6425438 is about 185.9092130262.

The spelling of 6425438 in words is "six million, four hundred twenty-five thousand, four hundred thirty-eight".