345446142 has 16 divisors (see below), whose sum is σ = 691958160. Its totient is φ = 114971072.

The previous prime is 345446107. The next prime is 345446149. The reversal of 345446142 is 241644543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345446149) 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, 40167 + ... + 48002.

It is an arithmetic number, because the mean of its divisors is an integer number (43247385).

Almost surely, 2^345446142 is an apocalyptic number.

345446142 is an abundant number, since it is smaller than the sum of its proper divisors (346512018).

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

345446142 is a wasteful number, since it uses less digits than its factorization.

345446142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88827.

The product of its digits is 46080, while the sum is 33.

The square root of 345446142 is about 18586.1814797984. The cubic root of 345446142 is about 701.6601020093.

The spelling of 345446142 in words is "three hundred forty-five million, four hundred forty-six thousand, one hundred forty-two".