351339649 has 4 divisors (see below), whose sum is σ = 351411460. Its totient is φ = 351267840.

The previous prime is 351339613. The next prime is 351339671. The reversal of 351339649 is 946933153.

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

It can be written as a sum of positive squares in 2 ways, for example, as 165508225 + 185831424 = 12865^2 + 13632^2 .

It is a cyclic number.

It is not a de Polignac number, because 351339649 - 2¹⁵ = 351306881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351339049) 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, 27984 + ... + 38545.

It is an arithmetic number, because the mean of its divisors is an integer number (87852865).

Almost surely, 2^351339649 is an apocalyptic number.

It is an amenable number.

351339649 is a deficient number, since it is larger than the sum of its proper divisors (71811).

351339649 is an equidigital number, since it uses as much as digits as its factorization.

351339649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71810.

The product of its digits is 262440, while the sum is 43.

The square root of 351339649 is about 18744.0563646186. The cubic root of 351339649 is about 705.6278624453.

The spelling of 351339649 in words is "three hundred fifty-one million, three hundred thirty-nine thousand, six hundred forty-nine".