6423438 has 16 divisors (see below), whose sum is σ = 14682240. Its totient is φ = 1835256.

The previous prime is 6423427. The next prime is 6423449. The reversal of 6423438 is 8343246.

It is an interprime number because it is at equal distance from previous prime (6423427) and next prime (6423449).

It is a d-powerful number, because it can be written as 6² + 4³ + 2¹⁷ + 3⁴ + 4¹¹ + 3⁶ + 8⁷ .

It is a Curzon number.

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, 76428 + ... + 76511.

It is an arithmetic number, because the mean of its divisors is an integer number (917640).

Almost surely, 2^6423438 is an apocalyptic number.

6423438 is an abundant number, since it is smaller than the sum of its proper divisors (8258802).

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

6423438 is a wasteful number, since it uses less digits than its factorization.

6423438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152951.

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

The square root of 6423438 is about 2534.4502362445. The cubic root of 6423438 is about 185.8899221487.

The spelling of 6423438 in words is "six million, four hundred twenty-three thousand, four hundred thirty-eight".