352997818 has 4 divisors (see below), whose sum is σ = 529496730. Its totient is φ = 176498908.

The previous prime is 352997807. The next prime is 352997857. The reversal of 352997818 is 818799253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220908769 + 132089049 = 14863^2 + 11493^2 .

It is a super-2 number, since 2×352997818² = 249214919025522248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88249453 + ... + 88249456.

Almost surely, 2^352997818 is an apocalyptic number.

352997818 is a deficient number, since it is larger than the sum of its proper divisors (176498912).

352997818 is a wasteful number, since it uses less digits than its factorization.

352997818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176498911.

The product of its digits is 1088640, while the sum is 52.

The square root of 352997818 is about 18788.2361598954. The cubic root of 352997818 is about 706.7362052826.

The spelling of 352997818 in words is "three hundred fifty-two million, nine hundred ninety-seven thousand, eight hundred eighteen".