350622621 has 8 divisors (see below), whose sum is σ = 519440960. Its totient is φ = 233748396.

The previous prime is 350622581. The next prime is 350622647. The reversal of 350622621 is 126226053.

350622621 is a `hidden beast` number, since 35 + 0 + 6 + 2 + 2 + 621 = 666.

It is not a de Polignac number, because 350622621 - 2⁹ = 350622109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12986023 = 350622621 / (3 + 5 + 0 + 6 + 2 + 2 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350622661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492985 + ... + 6493038.

It is an arithmetic number, because the mean of its divisors is an integer number (64930120).

Almost surely, 2^350622621 is an apocalyptic number.

It is an amenable number.

350622621 is a deficient number, since it is larger than the sum of its proper divisors (168818339).

350622621 is a wasteful number, since it uses less digits than its factorization.

350622621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986032 (or 12986026 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 350622621 is about 18724.9197862100. The cubic root of 350622621 is about 705.1475110075.

Adding to 350622621 its reverse (126226053), we get a palindrome (476848674).

The spelling of 350622621 in words is "three hundred fifty million, six hundred twenty-two thousand, six hundred twenty-one".