346404642 has 16 divisors (see below), whose sum is σ = 693645120. Its totient is φ = 115328912.

The previous prime is 346404607. The next prime is 346404677. The reversal of 346404642 is 246404643.

It is an interprime number because it is at equal distance from previous prime (346404607) and next prime (346404677).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29373 + ... + 39440.

It is an arithmetic number, because the mean of its divisors is an integer number (43352820).

Almost surely, 2^346404642 is an apocalyptic number.

346404642 is an abundant number, since it is smaller than the sum of its proper divisors (347240478).

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

346404642 is a wasteful number, since it uses less digits than its factorization.

346404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69657.

The product of its (nonzero) digits is 55296, while the sum is 33.

The square root of 346404642 is about 18611.9489038628. The cubic root of 346404642 is about 702.3084617736.

Subtracting from 346404642 its reverse (246404643), we obtain a palindrome (99999999).

The spelling of 346404642 in words is "three hundred forty-six million, four hundred four thousand, six hundred forty-two".