353942646 has 16 divisors (see below), whose sum is σ = 712638000. Its totient is φ = 117188768.

The previous prime is 353942599. The next prime is 353942647. The reversal of 353942646 is 646249353.

It is a junction number, because it is equal to n+sod(n) for n = 353942598 and 353942607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353942647) 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, 197061 + ... + 198848.

It is an arithmetic number, because the mean of its divisors is an integer number (44539875).

Almost surely, 2^353942646 is an apocalyptic number.

353942646 is an abundant number, since it is smaller than the sum of its proper divisors (358695354).

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

353942646 is a wasteful number, since it uses less digits than its factorization.

353942646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396063.

The product of its digits is 466560, while the sum is 42.

The square root of 353942646 is about 18813.3634951329. The cubic root of 353942646 is about 707.3661896131.

The spelling of 353942646 in words is "three hundred fifty-three million, nine hundred forty-two thousand, six hundred forty-six".