350149821 has 24 divisors (see below), whose sum is σ = 542572992. Its totient is φ = 196761600.

The previous prime is 350149819. The next prime is 350149831. The reversal of 350149821 is 128941053.

It is not a de Polignac number, because 350149821 - 2¹ = 350149819 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350149801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75901 + ... + 80381.

It is an arithmetic number, because the mean of its divisors is an integer number (22607208).

Almost surely, 2^350149821 is an apocalyptic number.

It is an amenable number.

350149821 is a deficient number, since it is larger than the sum of its proper divisors (192423171).

350149821 is an equidigital number, since it uses as much as digits as its factorization.

350149821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 350149821 is about 18712.2906401114. The cubic root of 350149821 is about 704.8304144185.

The spelling of 350149821 in words is "three hundred fifty million, one hundred forty-nine thousand, eight hundred twenty-one".