6402190 has 8 divisors (see below), whose sum is σ = 11523960. Its totient is φ = 2560872.

The previous prime is 6402181. The next prime is 6402203. The reversal of 6402190 is 912046.

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

It is a super-2 number, since 2×6402190² = 81976073592200, which contains 22 as substring.

It is a congruent number.

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, 320100 + ... + 320119.

It is an arithmetic number, because the mean of its divisors is an integer number (1440495).

Almost surely, 2^6402190 is an apocalyptic number.

6402190 is a deficient number, since it is larger than the sum of its proper divisors (5121770).

6402190 is a wasteful number, since it uses less digits than its factorization.

6402190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640226.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6402190 is about 2530.2549278679. The cubic root of 6402190 is about 185.6847281785.

The spelling of 6402190 in words is "six million, four hundred two thousand, one hundred ninety".