350667421 has 4 divisors (see below), whose sum is σ = 377641852. Its totient is φ = 323692992.

The previous prime is 350667413. The next prime is 350667433. The reversal of 350667421 is 124766053.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124766053 = 23 ⋅5424611.

It can be written as a sum of positive squares in 2 ways, for example, as 135722500 + 214944921 = 11650^2 + 14661^2 .

It is a cyclic number.

It is not a de Polignac number, because 350667421 - 2³ = 350667413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350667461) 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, 13487196 + ... + 13487221.

It is an arithmetic number, because the mean of its divisors is an integer number (94410463).

Almost surely, 2^350667421 is an apocalyptic number.

It is an amenable number.

350667421 is a deficient number, since it is larger than the sum of its proper divisors (26974431).

350667421 is a wasteful number, since it uses less digits than its factorization.

350667421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26974430.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 350667421 is about 18726.1160148067. The cubic root of 350667421 is about 705.1775425962.

The spelling of 350667421 in words is "three hundred fifty million, six hundred sixty-seven thousand, four hundred twenty-one".