351423220 has 48 divisors (see below), whose sum is σ = 750835008. Its totient is φ = 138145280.

The previous prime is 351423199. The next prime is 351423229. The reversal of 351423220 is 22324153.

It is a junction number, because it is equal to n+sod(n) for n = 351423191 and 351423200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351423229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295467 + ... + 296653.

It is an arithmetic number, because the mean of its divisors is an integer number (15642396).

Almost surely, 2^351423220 is an apocalyptic number.

It is an amenable number.

351423220 is an abundant number, since it is smaller than the sum of its proper divisors (399411788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351423220 is a wasteful number, since it uses less digits than its factorization.

351423220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 351423220 is about 18746.2854987328. The cubic root of 351423220 is about 705.6838057956.

Adding to 351423220 its reverse (22324153), we get a palindrome (373747373).

The spelling of 351423220 in words is "three hundred fifty-one million, four hundred twenty-three thousand, two hundred twenty".