6440602 has 16 divisors (see below), whose sum is σ = 11074752. Its totient is φ = 2751840.

The previous prime is 6440587. The next prime is 6440641. The reversal of 6440602 is 2060446.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6853 + ... + 7735.

It is an arithmetic number, because the mean of its divisors is an integer number (692172).

Almost surely, 2^6440602 is an apocalyptic number.

6440602 is a deficient number, since it is larger than the sum of its proper divisors (4634150).

6440602 is a wasteful number, since it uses less digits than its factorization.

6440602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 6440602 is about 2537.8341159343. The cubic root of 6440602 is about 186.0553463845.

The spelling of 6440602 in words is "six million, four hundred forty thousand, six hundred two".