6720342 has 16 divisors (see below), whose sum is σ = 13727232. Its totient is φ = 2192360.

The previous prime is 6720331. The next prime is 6720353. The reversal of 6720342 is 2430276.

It is an interprime number because it is at equal distance from previous prime (6720331) and next prime (6720353).

It is an Ulam number.

It is a congruent 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, 11634 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (857952).

Almost surely, 2^6720342 is an apocalyptic number.

6720342 is an abundant number, since it is smaller than the sum of its proper divisors (7006890).

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

6720342 is a wasteful number, since it uses less digits than its factorization.

6720342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23883.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 6720342 is about 2592.3622432060. The cubic root of 6720342 is about 188.7109604507.

The spelling of 6720342 in words is "six million, seven hundred twenty thousand, three hundred forty-two".