6469138 has 8 divisors (see below), whose sum is σ = 10450188. Its totient is φ = 2985744.

The previous prime is 6469093. The next prime is 6469157. The reversal of 6469138 is 8319646.

It can be written as a sum of positive squares in 2 ways, for example, as 5230369 + 1238769 = 2287^2 + 1113^2 .

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

It is a super-3 number, since 3×6469138³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6469097 and 6469106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124381 + ... + 124432.

Almost surely, 2^6469138 is an apocalyptic number.

6469138 is a deficient number, since it is larger than the sum of its proper divisors (3981050).

6469138 is a wasteful number, since it uses less digits than its factorization.

6469138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248828.

The product of its digits is 31104, while the sum is 37.

The square root of 6469138 is about 2543.4500191669. The cubic root of 6469138 is about 186.3297230883.

The spelling of 6469138 in words is "six million, four hundred sixty-nine thousand, one hundred thirty-eight".