351423401 has 4 divisors (see below), whose sum is σ = 401626752. Its totient is φ = 301220052.

The previous prime is 351423389. The next prime is 351423407. The reversal of 351423401 is 104324153.

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: 104324153 = 2377 ⋅43889.

It is not a de Polignac number, because 351423401 - 2¹⁸ = 351161257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351423407) 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, 25101665 + ... + 25101678.

It is an arithmetic number, because the mean of its divisors is an integer number (100406688).

Almost surely, 2^351423401 is an apocalyptic number.

It is an amenable number.

351423401 is a deficient number, since it is larger than the sum of its proper divisors (50203351).

351423401 is an equidigital number, since it uses as much as digits as its factorization.

351423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50203350.

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

The square root of 351423401 is about 18746.2903263552. The cubic root of 351423401 is about 705.6839269493.

Adding to 351423401 its reverse (104324153), we get a palindrome (455747554).

The spelling of 351423401 in words is "three hundred fifty-one million, four hundred twenty-three thousand, four hundred one".