346032140 has 24 divisors (see below), whose sum is σ = 746308752. Its totient is φ = 134671680.

The previous prime is 346032139. The next prime is 346032143. The reversal of 346032140 is 41230643.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (346032143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233066 + ... + 234545.

It is an arithmetic number, because the mean of its divisors is an integer number (31096198).

Almost surely, 2^346032140 is an apocalyptic number.

It is an amenable number.

346032140 is an abundant number, since it is smaller than the sum of its proper divisors (400276612).

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

346032140 is a wasteful number, since it uses less digits than its factorization.

346032140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467657 (or 467655 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 346032140 is about 18601.9391462288. The cubic root of 346032140 is about 702.0566318763.

Adding to 346032140 its reverse (41230643), we get a palindrome (387262783).

The spelling of 346032140 in words is "three hundred forty-six million, thirty-two thousand, one hundred forty".