342781390 has 32 divisors (see below), whose sum is σ = 706138560. Its totient is φ = 117360384.

The previous prime is 342781381. The next prime is 342781391. The reversal of 342781390 is 93187243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342781391) 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 15 ways as a sum of consecutive naturals, for example, 53604 + ... + 59656.

It is an arithmetic number, because the mean of its divisors is an integer number (22066830).

Almost surely, 2^342781390 is an apocalyptic number.

342781390 is an abundant number, since it is smaller than the sum of its proper divisors (363357170).

342781390 is a wasteful number, since it uses less digits than its factorization.

342781390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 342781390 is about 18514.3563215144. The cubic root of 342781390 is about 699.8512541089.

The spelling of 342781390 in words is "three hundred forty-two million, seven hundred eighty-one thousand, three hundred ninety".