6405342 has 8 divisors (see below), whose sum is σ = 12810696. Its totient is φ = 2135112.

The previous prime is 6405331. The next prime is 6405353. The reversal of 6405342 is 2435046.

It is an interprime number because it is at equal distance from previous prime (6405331) and next prime (6405353).

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

6405342 is an admirable number.

It is a super-2 number, since 2×6405342² = 82056812273928, 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, 533773 + ... + 533784.

It is an arithmetic number, because the mean of its divisors is an integer number (1601337).

Almost surely, 2^6405342 is an apocalyptic number.

6405342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6405342 is a wasteful number, since it uses less digits than its factorization.

6405342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067562.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 6405342 is about 2530.8777133635. The cubic root of 6405342 is about 185.7151959944.

The spelling of 6405342 in words is "six million, four hundred five thousand, three hundred forty-two".