6426642 has 16 divisors (see below), whose sum is σ = 12879072. Its totient is φ = 2137920.

The previous prime is 6426631. The next prime is 6426653. The reversal of 6426642 is 2466246.

It is an interprime number because it is at equal distance from previous prime (6426631) and next prime (6426653).

It is a d-powerful number, because it can be written as 6 + 4⁶ + 2¹⁷ + 6 + 6 + 4¹¹ + 2²¹ .

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, 4042 + ... + 5402.

It is an arithmetic number, because the mean of its divisors is an integer number (804942).

Almost surely, 2^6426642 is an apocalyptic number.

6426642 is an abundant number, since it is smaller than the sum of its proper divisors (6452430).

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

6426642 is a wasteful number, since it uses less digits than its factorization.

6426642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its digits is 13824, while the sum is 30.

The square root of 6426642 is about 2535.0822471865. The cubic root of 6426642 is about 185.9208242042.

The spelling of 6426642 in words is "six million, four hundred twenty-six thousand, six hundred forty-two".