6401026 has 8 divisors (see below), whose sum is σ = 9618444. Its totient is φ = 3194880.

The previous prime is 6401011. The next prime is 6401029. The reversal of 6401026 is 6201046.

It can be written as a sum of positive squares in 2 ways, for example, as 6245001 + 156025 = 2499^2 + 395^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6400994 and 6401012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401029) 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, 1215 + ... + 3778.

Almost surely, 2^6401026 is an apocalyptic number.

6401026 is a deficient number, since it is larger than the sum of its proper divisors (3217418).

6401026 is a wasteful number, since it uses less digits than its factorization.

6401026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 6401026 is about 2530.0249010632. The cubic root of 6401026 is about 185.6734742105.

The spelling of 6401026 in words is "six million, four hundred one thousand, twenty-six".