6388494 has 32 divisors (see below), whose sum is σ = 15000576. Its totient is φ = 1775520.

The previous prime is 6388483. The next prime is 6388507. The reversal of 6388494 is 4948836.

6388494 is digitally balanced in base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

6388494 is strictly pandigital in base 8.

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 15 ways as a sum of consecutive naturals, for example, 502 + ... + 3609.

It is an arithmetic number, because the mean of its divisors is an integer number (468768).

Almost surely, 2^6388494 is an apocalyptic number.

6388494 is an abundant number, since it is smaller than the sum of its proper divisors (8612082).

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

6388494 is a wasteful number, since it uses less digits than its factorization.

6388494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160.

The product of its digits is 165888, while the sum is 42.

The square root of 6388494 is about 2527.5470322034. The cubic root of 6388494 is about 185.5522238490.

The spelling of 6388494 in words is "six million, three hundred eighty-eight thousand, four hundred ninety-four".