352226778 has 8 divisors (see below), whose sum is σ = 704453568. Its totient is φ = 117408924.

The previous prime is 352226759. The next prime is 352226783. The reversal of 352226778 is 877622253.

It is a sphenic number, since it is the product of 3 distinct primes.

352226778 is an admirable number.

It is a super-2 number, since 2×352226778² = 248127406280522568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 29352226 + ... + 29352237.

It is an arithmetic number, because the mean of its divisors is an integer number (88056696).

Almost surely, 2^352226778 is an apocalyptic number.

352226778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

352226778 is a wasteful number, since it uses less digits than its factorization.

352226778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58704468.

The product of its digits is 282240, while the sum is 42.

The square root of 352226778 is about 18767.7057201993. The cubic root of 352226778 is about 706.2212643123.

The spelling of 352226778 in words is "three hundred fifty-two million, two hundred twenty-six thousand, seven hundred seventy-eight".