647433342 has 24 divisors (see below), whose sum is σ = 1403278344. Its totient is φ = 215733264.

The previous prime is 647433313. The next prime is 647433349. The reversal of 647433342 is 243334746.

647433342 is a `hidden beast` number, since 647 + 4 + 3 + 3 + 3 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 647433297 and 647433306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647433349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67753 + ... + 76715.

It is an arithmetic number, because the mean of its divisors is an integer number (58469931).

Almost surely, 2^647433342 is an apocalyptic number.

647433342 is an abundant number, since it is smaller than the sum of its proper divisors (755845002).

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

647433342 is a wasteful number, since it uses less digits than its factorization.

647433342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12984 (or 12981 counting only the distinct ones).

The product of its digits is 145152, while the sum is 36.

The square root of 647433342 is about 25444.7114740961. The cubic root of 647433342 is about 865.0974271853.

The spelling of 647433342 in words is "six hundred forty-seven million, four hundred thirty-three thousand, three hundred forty-two".