6394436 has 12 divisors (see below), whose sum is σ = 11232060. Its totient is φ = 3185280.

The previous prime is 6394433. The next prime is 6394439. The reversal of 6394436 is 6344936.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6394433) and next prime (6394439).

It can be written as a sum of positive squares in 2 ways, for example, as 5382400 + 1012036 = 2320^2 + 1006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6394396 and 6394405.

It is not an unprimeable number, because it can be changed into a prime (6394433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721 + ... + 3968.

It is an arithmetic number, because the mean of its divisors is an integer number (936005).

Almost surely, 2^6394436 is an apocalyptic number.

It is an amenable number.

6394436 is a deficient number, since it is larger than the sum of its proper divisors (4837624).

6394436 is a wasteful number, since it uses less digits than its factorization.

6394436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5974 (or 5972 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 6394436 is about 2528.7222069654. The cubic root of 6394436 is about 185.6097339945.

The spelling of 6394436 in words is "six million, three hundred ninety-four thousand, four hundred thirty-six".