351231228 has 36 divisors (see below), whose sum is σ = 920719800. Its totient is φ = 117076752.

The previous prime is 351231191. The next prime is 351231241. The reversal of 351231228 is 822132153.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179703 + ... + 181646.

It is an arithmetic number, because the mean of its divisors is an integer number (25575550).

Almost surely, 2^351231228 is an apocalyptic number.

It is an amenable number.

351231228 is an abundant number, since it is smaller than the sum of its proper divisors (569488572).

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

351231228 is a wasteful number, since it uses less digits than its factorization.

351231228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361368 (or 361354 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 351231228 is about 18741.1639980018. The cubic root of 351231228 is about 705.5552710089. Note that the first 3 decimals are identical.

The spelling of 351231228 in words is "three hundred fifty-one million, two hundred thirty-one thousand, two hundred twenty-eight".