346644142 has 16 divisors (see below), whose sum is σ = 566259120. Its totient is φ = 158190912.

The previous prime is 346644121. The next prime is 346644143. The reversal of 346644142 is 241446643.

It is a super-2 number, since 2×346644142² = 240324322365832328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 346644098 and 346644107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346644143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72588 + ... + 77215.

It is an arithmetic number, because the mean of its divisors is an integer number (35391195).

Almost surely, 2^346644142 is an apocalyptic number.

346644142 is a deficient number, since it is larger than the sum of its proper divisors (219614978).

346644142 is a wasteful number, since it uses less digits than its factorization.

346644142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149907.

The product of its digits is 55296, while the sum is 34.

The square root of 346644142 is about 18618.3818308681. The cubic root of 346644142 is about 702.4702803585.

The spelling of 346644142 in words is "three hundred forty-six million, six hundred forty-four thousand, one hundred forty-two".