353441421 has 8 divisors (see below), whose sum is σ = 523616960. Its totient is φ = 235627596.

The previous prime is 353441419. The next prime is 353441461. The reversal of 353441421 is 124144353.

It is a happy number.

It is not a de Polignac number, because 353441421 - 2¹ = 353441419 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: 13090423 = 353441421 / (3 + 5 + 3 + 4 + 4 + 1 + 4 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353441461) 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, 6545185 + ... + 6545238.

It is an arithmetic number, because the mean of its divisors is an integer number (65452120).

Almost surely, 2^353441421 is an apocalyptic number.

It is an amenable number.

353441421 is a deficient number, since it is larger than the sum of its proper divisors (170175539).

353441421 is a wasteful number, since it uses less digits than its factorization.

353441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13090432 (or 13090426 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 353441421 is about 18800.0377925152. The cubic root of 353441421 is about 707.0321269095.

Adding to 353441421 its reverse (124144353), we get a palindrome (477585774).

The spelling of 353441421 in words is "three hundred fifty-three million, four hundred forty-one thousand, four hundred twenty-one".