350042921 has 4 divisors (see below), whose sum is σ = 350240592. Its totient is φ = 349845252.

The previous prime is 350042897. The next prime is 350042923. The reversal of 350042921 is 129240053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 350042921 - 2¹⁸ = 349780777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350042923) 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, 96155 + ... + 99728.

It is an arithmetic number, because the mean of its divisors is an integer number (87560148).

Almost surely, 2^350042921 is an apocalyptic number.

It is an amenable number.

350042921 is a deficient number, since it is larger than the sum of its proper divisors (197671).

350042921 is a wasteful number, since it uses less digits than its factorization.

350042921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197670.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 350042921 is about 18709.4340106803. The cubic root of 350042921 is about 704.7586793727.

Adding to 350042921 its reverse (129240053), we get a palindrome (479282974).

The spelling of 350042921 in words is "three hundred fifty million, forty-two thousand, nine hundred twenty-one".