1228228430 has 64 divisors (see below), whose sum is σ = 2618155008. Its totient is φ = 408965760.

The previous prime is 1228228411. The next prime is 1228228483. The reversal of 1228228430 is 348228221.

It is a super-3 number, since 3×1228228430³ (a number of 28 digits) contains 333 as substring.

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, 178229 + ... + 184991.

It is an arithmetic number, because the mean of its divisors is an integer number (40908672).

Almost surely, 2^1228228430 is an apocalyptic number.

1228228430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228228430 is an abundant number, since it is smaller than the sum of its proper divisors (1389926578).

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

1228228430 is a wasteful number, since it uses less digits than its factorization.

1228228430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1228228430 is about 35046.0900814913. The cubic root of 1228228430 is about 1070.9266232858.

The spelling of 1228228430 in words is "one billion, two hundred twenty-eight million, two hundred twenty-eight thousand, four hundred thirty".