351648420 has 24 divisors (see below), whose sum is σ = 984615744. Its totient is φ = 93772896.

The previous prime is 351648413. The next prime is 351648421. The reversal of 351648420 is 24846153.

It is a super-2 number, since 2×351648420² = 247313222576992800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (351648421) 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, 2930344 + ... + 2930463.

It is an arithmetic number, because the mean of its divisors is an integer number (41025656).

Almost surely, 2^351648420 is an apocalyptic number.

351648420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

351648420 is an abundant number, since it is smaller than the sum of its proper divisors (632967324).

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

351648420 is a wasteful number, since it uses less digits than its factorization.

351648420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860819 (or 5860817 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 351648420 is about 18752.2910600278. The cubic root of 351648420 is about 705.8345130241.

The spelling of 351648420 in words is "three hundred fifty-one million, six hundred forty-eight thousand, four hundred twenty".