6340842 has 28 divisors (see below), whose sum is σ = 14263650. Its totient is φ = 2113128.

The previous prime is 6340811. The next prime is 6340843. The reversal of 6340842 is 2480436.

It can be written as a sum of positive squares in only one way, i.e., 6305121 + 35721 = 2511^2 + 189^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6340843) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 717 + ... + 3632.

Almost surely, 2^6340842 is an apocalyptic number.

6340842 is an abundant number, since it is smaller than the sum of its proper divisors (7922808).

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

6340842 is an equidigital number, since it uses as much as digits as its factorization.

6340842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6340842 is about 2518.1028573114. The cubic root of 6340842 is about 185.0897251638.

It can be divided in two parts, 63 and 40842, that multiplied together give a triangular number (2573046 = T₂₂₆₈).

The spelling of 6340842 in words is "six million, three hundred forty thousand, eight hundred forty-two".