352889021 has 8 divisors (see below), whose sum is σ = 357012864. Its totient is φ = 348778800.

The previous prime is 352888993. The next prime is 352889029. The reversal of 352889021 is 120988253.

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

It is a cyclic number.

It is not a de Polignac number, because 352889021 - 2¹⁸ = 352626877 is a prime.

It is a super-2 number, since 2×352889021² = 249061322284676882, 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 (352889029) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 54296 + ... + 60446.

It is an arithmetic number, because the mean of its divisors is an integer number (44626608).

Almost surely, 2^352889021 is an apocalyptic number.

It is an amenable number.

352889021 is a deficient number, since it is larger than the sum of its proper divisors (4123843).

352889021 is a wasteful number, since it uses less digits than its factorization.

352889021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 352889021 is about 18785.3405878094. The cubic root of 352889021 is about 706.6635904053.

The spelling of 352889021 in words is "three hundred fifty-two million, eight hundred eighty-nine thousand, twenty-one".