6538402 has 8 divisors (see below), whose sum is σ = 10562076. Its totient is φ = 3017712.

The previous prime is 6538373. The next prime is 6538403. The reversal of 6538402 is 2048356.

It can be written as a sum of positive squares in 2 ways, for example, as 5148361 + 1390041 = 2269^2 + 1179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6538403) 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, 125713 + ... + 125764.

Almost surely, 2^6538402 is an apocalyptic number.

6538402 is a deficient number, since it is larger than the sum of its proper divisors (4023674).

6538402 is a wasteful number, since it uses less digits than its factorization.

6538402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251492.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6538402 is about 2557.0299176975. The cubic root of 6538402 is about 186.9923643541.

The spelling of 6538402 in words is "six million, five hundred thirty-eight thousand, four hundred two".