351823431420 has 96 divisors (see below), whose sum is σ = 1096239090240. Its totient is φ = 93675813120.

The previous prime is 351823431391. The next prime is 351823431431. The reversal of 351823431420 is 24134328153.

351823431420 is a `hidden beast` number, since 3 + 5 + 182 + 3 + 431 + 42 + 0 = 666.

It is a super-2 number, since 2×351823431420² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146251 + ... + 851490.

It is an arithmetic number, because the mean of its divisors is an integer number (11419157190).

Almost surely, 2^351823431420 is an apocalyptic number.

351823431420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351823431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548119545120).

351823431420 is an abundant number, since it is smaller than the sum of its proper divisors (744415658820).

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

351823431420 is a wasteful number, since it uses less digits than its factorization.

351823431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998412 (or 998404 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 351823431420 its reverse (24134328153), we get a palindrome (375957759573).

The spelling of 351823431420 in words is "three hundred fifty-one billion, eight hundred twenty-three million, four hundred thirty-one thousand, four hundred twenty".