344142140 has 12 divisors (see below), whose sum is σ = 722698536. Its totient is φ = 137656848.

The previous prime is 344142133. The next prime is 344142181. The reversal of 344142140 is 41241443.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8603534 + ... + 8603573.

It is an arithmetic number, because the mean of its divisors is an integer number (60224878).

Almost surely, 2^344142140 is an apocalyptic number.

It is an amenable number.

344142140 is an abundant number, since it is smaller than the sum of its proper divisors (378556396).

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

344142140 is a wasteful number, since it uses less digits than its factorization.

344142140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17207116 (or 17207114 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 344142140 is about 18551.0684328424. The cubic root of 344142140 is about 700.7761051837.

Adding to 344142140 its reverse (41241443), we get a palindrome (385383583).

The spelling of 344142140 in words is "three hundred forty-four million, one hundred forty-two thousand, one hundred forty".