6442426 has 8 divisors (see below), whose sum is σ = 9712800. Its totient is φ = 3204828.

The previous prime is 6442399. The next prime is 6442427. The reversal of 6442426 is 6242446.

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

It is a junction number, because it is equal to n+sod(n) for n = 6442394 and 6442403.

It is not an unprimeable number, because it can be changed into a prime (6442427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7696 + ... + 8491.

It is an arithmetic number, because the mean of its divisors is an integer number (1214100).

Almost surely, 2^6442426 is an apocalyptic number.

6442426 is a deficient number, since it is larger than the sum of its proper divisors (3270374).

6442426 is a wasteful number, since it uses less digits than its factorization.

6442426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388.

The product of its digits is 9216, while the sum is 28.

The square root of 6442426 is about 2538.1934520442. The cubic root of 6442426 is about 186.0729085586.

The spelling of 6442426 in words is "six million, four hundred forty-two thousand, four hundred twenty-six".