342644427 has 12 divisors (see below), whose sum is σ = 495326520. Its totient is φ = 228247008.

The previous prime is 342644411. The next prime is 342644513. The reversal of 342644427 is 724446243.

342644427 is a `hidden beast` number, since 3 + 4 + 2 + 644 + 4 + 2 + 7 = 666.

It is not a de Polignac number, because 342644427 - 2⁴ = 342644411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342644391 and 342644400.

It is not an unprimeable number, because it can be changed into a prime (342644527) 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, 2802 + ... + 26327.

It is an arithmetic number, because the mean of its divisors is an integer number (41277210).

Almost surely, 2^342644427 is an apocalyptic number.

342644427 is a deficient number, since it is larger than the sum of its proper divisors (152682093).

342644427 is a wasteful number, since it uses less digits than its factorization.

342644427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30442 (or 30439 counting only the distinct ones).

The product of its digits is 129024, while the sum is 36.

The square root of 342644427 is about 18510.6571196163. The cubic root of 342644427 is about 699.7580299729.

The spelling of 342644427 in words is "three hundred forty-two million, six hundred forty-four thousand, four hundred twenty-seven".