6428542 has 4 divisors (see below), whose sum is σ = 9642816. Its totient is φ = 3214270.

The previous prime is 6428489. The next prime is 6428551. The reversal of 6428542 is 2458246.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607134 + ... + 1607137.

It is an arithmetic number, because the mean of its divisors is an integer number (2410704).

Almost surely, 2^6428542 is an apocalyptic number.

6428542 is a deficient number, since it is larger than the sum of its proper divisors (3214274).

6428542 is a wasteful number, since it uses less digits than its factorization.

6428542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214273.

The product of its digits is 15360, while the sum is 31.

The square root of 6428542 is about 2535.4569607864. The cubic root of 6428542 is about 185.9391445421.

The spelling of 6428542 in words is "six million, four hundred twenty-eight thousand, five hundred forty-two".