352785381 has 8 divisors (see below), whose sum is σ = 506563680. Its totient is φ = 217098672.

The previous prime is 352785359. The next prime is 352785383. The reversal of 352785381 is 183587253.

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

It is not a de Polignac number, because 352785381 - 2⁶ = 352785317 is a prime.

It is a super-2 number, since 2×352785381² = 248915050094630322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352785383) 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, 4522851 + ... + 4522928.

It is an arithmetic number, because the mean of its divisors is an integer number (63320460).

Almost surely, 2^352785381 is an apocalyptic number.

It is an amenable number.

352785381 is a deficient number, since it is larger than the sum of its proper divisors (153778299).

352785381 is a wasteful number, since it uses less digits than its factorization.

352785381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045795.

The product of its digits is 201600, while the sum is 42.

The square root of 352785381 is about 18782.5818512791. The cubic root of 352785381 is about 706.5944036061.

The spelling of 352785381 in words is "three hundred fifty-two million, seven hundred eighty-five thousand, three hundred eighty-one".