353421401 has 4 divisors (see below), whose sum is σ = 353479632. Its totient is φ = 353363172.

The previous prime is 353421391. The next prime is 353421433. The reversal of 353421401 is 104124353.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104124353 = 73 ⋅1426361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-353421401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (353421461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18791 + ... + 32556.

It is an arithmetic number, because the mean of its divisors is an integer number (88369908).

Almost surely, 2^353421401 is an apocalyptic number.

It is an amenable number.

353421401 is a deficient number, since it is larger than the sum of its proper divisors (58231).

353421401 is an equidigital number, since it uses as much as digits as its factorization.

353421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58230.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 353421401 is about 18799.5053392370. The cubic root of 353421401 is about 707.0187771722.

Adding to 353421401 its reverse (104124353), we get a palindrome (457545754).

The spelling of 353421401 in words is "three hundred fifty-three million, four hundred twenty-one thousand, four hundred one".