350649 has 28 divisors (see below), whose sum is σ = 581476. Its totient is φ = 209952.

The previous prime is 350629. The next prime is 350657. The reversal of 350649 is 946053.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 164025 = 432^2 + 405^2 .

It is not a de Polignac number, because 350649 - 2⁵ = 350617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

350649 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 350649.

It is not an unprimeable number, because it can be changed into a prime (350629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9459 + ... + 9495.

It is an arithmetic number, because the mean of its divisors is an integer number (20767).

2³⁵⁰⁶⁴⁹ is an apocalyptic number.

350649 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

350649 is a deficient number, since it is larger than the sum of its proper divisors (230827).

350649 is an equidigital number, since it uses as much as digits as its factorization.

350649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 350649 is about 592.1562293855. The cubic root of 350649 is about 70.5165194426.

It can be divided in two parts, 350 and 649, that added together give a palindrome (999).

The spelling of 350649 in words is "three hundred fifty thousand, six hundred forty-nine".