352840642 has 32 divisors (see below), whose sum is σ = 664329600. Its totient is φ = 136538880.

The previous prime is 352840613. The next prime is 352840679. The reversal of 352840642 is 246048253.

It is a junction number, because it is equal to n+sod(n) for n = 352840598 and 352840607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15258 + ... + 30634.

It is an arithmetic number, because the mean of its divisors is an integer number (20760300).

Almost surely, 2^352840642 is an apocalyptic number.

352840642 is a deficient number, since it is larger than the sum of its proper divisors (311488958).

352840642 is a wasteful number, since it uses less digits than its factorization.

352840642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15546.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 352840642 is about 18784.0528640653. The cubic root of 352840642 is about 706.6312957950.

Adding to 352840642 its reverse (246048253), we get a palindrome (598888895).

The spelling of 352840642 in words is "three hundred fifty-two million, eight hundred forty thousand, six hundred forty-two".