352491249 has 32 divisors (see below), whose sum is σ = 543168000. Its totient is φ = 201087360.

The previous prime is 352491247. The next prime is 352491257. The reversal of 352491249 is 942194253.

It is not a de Polignac number, because 352491249 - 2¹ = 352491247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (352491241) 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 31 ways as a sum of consecutive naturals, for example, 100477 + ... + 103925.

It is an arithmetic number, because the mean of its divisors is an integer number (16974000).

Almost surely, 2^352491249 is an apocalyptic number.

It is an amenable number.

352491249 is a deficient number, since it is larger than the sum of its proper divisors (190676751).

352491249 is a wasteful number, since it uses less digits than its factorization.

352491249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645.

The product of its digits is 77760, while the sum is 39.

The square root of 352491249 is about 18774.7503045979. The cubic root of 352491249 is about 706.3979765218.

The spelling of 352491249 in words is "three hundred fifty-two million, four hundred ninety-one thousand, two hundred forty-nine".