647343042 has 16 divisors (see below), whose sum is σ = 1294996512. Its totient is φ = 215729280.

The previous prime is 647343029. The next prime is 647343077. The reversal of 647343042 is 240343746.

647343042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 647342994 and 647343012.

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, 21042 + ... + 41682.

It is an arithmetic number, because the mean of its divisors is an integer number (80937282).

Almost surely, 2^647343042 is an apocalyptic number.

647343042 is an abundant number, since it is smaller than the sum of its proper divisors (647653470).

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

647343042 is a wasteful number, since it uses less digits than its factorization.

647343042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25873.

The product of its (nonzero) digits is 48384, while the sum is 33.

The square root of 647343042 is about 25442.9369766936. The cubic root of 647343042 is about 865.0572058350.

Adding to 647343042 its reverse (240343746), we get a palindrome (887686788).

It can be divided in two parts, 64734 and 3042, that added together give a palindrome (67776).

The spelling of 647343042 in words is "six hundred forty-seven million, three hundred forty-three thousand, forty-two".