352406665 has 8 divisors (see below), whose sum is σ = 455417928. Its totient is φ = 260238720.

The previous prime is 352406641. The next prime is 352406671. The reversal of 352406665 is 566604253.

It can be written as a sum of positive squares in 4 ways, for example, as 31674384 + 320732281 = 5628^2 + 17909^2 .

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

It is not a de Polignac number, because 352406665 - 2⁵ = 352406633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710756 + ... + 2710885.

It is an arithmetic number, because the mean of its divisors is an integer number (56927241).

Almost surely, 2^352406665 is an apocalyptic number.

It is an amenable number.

352406665 is a deficient number, since it is larger than the sum of its proper divisors (103011263).

352406665 is a wasteful number, since it uses less digits than its factorization.

352406665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421659.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 352406665 is about 18772.4975695830. The cubic root of 352406665 is about 706.3414694487.

It can be divided in two parts, 35240 and 6665, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 352406665 in words is "three hundred fifty-two million, four hundred six thousand, six hundred sixty-five".