6423408 has 40 divisors (see below), whose sum is σ = 18438800. Its totient is φ = 2140992.

The previous prime is 6423407. The next prime is 6423427. The reversal of 6423408 is 8043246.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7003 + ... + 7866.

It is an arithmetic number, because the mean of its divisors is an integer number (460970).

Almost surely, 2^6423408 is an apocalyptic number.

It is an amenable number.

6423408 is an abundant number, since it is smaller than the sum of its proper divisors (12015392).

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

6423408 is a wasteful number, since it uses less digits than its factorization.

6423408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886 (or 14874 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6423408 is about 2534.4443177943. Note that the first 3 decimals coincide. The cubic root of 6423408 is about 185.8896327551.

The spelling of 6423408 in words is "six million, four hundred twenty-three thousand, four hundred eight".