342505438 has 16 divisors (see below), whose sum is σ = 589962240. Its totient is φ = 147490200.

The previous prime is 342505379. The next prime is 342505439. The reversal of 342505438 is 834505243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342505439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409278 + ... + 410113.

It is an arithmetic number, because the mean of its divisors is an integer number (36872640).

Almost surely, 2^342505438 is an apocalyptic number.

342505438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

342505438 is a deficient number, since it is larger than the sum of its proper divisors (247456802).

342505438 is a wasteful number, since it uses less digits than its factorization.

342505438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819423.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 342505438 is about 18506.9024420620. The cubic root of 342505438 is about 699.6634014361.

The spelling of 342505438 in words is "three hundred forty-two million, five hundred five thousand, four hundred thirty-eight".