352229981 has 4 divisors (see below), whose sum is σ = 367544352. Its totient is φ = 336915612.

The previous prime is 352229963. The next prime is 352229993. The reversal of 352229981 is 189922253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 352229981 - 2¹⁰ = 352228957 is a prime.

It is a super-2 number, since 2×352229981² = 248131919030520722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352229281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7657151 + ... + 7657196.

It is an arithmetic number, because the mean of its divisors is an integer number (91886088).

Almost surely, 2^352229981 is an apocalyptic number.

It is an amenable number.

352229981 is a deficient number, since it is larger than the sum of its proper divisors (15314371).

352229981 is a wasteful number, since it uses less digits than its factorization.

352229981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314370.

The product of its digits is 77760, while the sum is 41.

The square root of 352229981 is about 18767.7910527584. The cubic root of 352229981 is about 706.2234049974.

The spelling of 352229981 in words is "three hundred fifty-two million, two hundred twenty-nine thousand, nine hundred eighty-one".