1228485630 has 32 divisors (see below), whose sum is σ = 2968164000. Its totient is φ = 325396352.

The previous prime is 1228485611. The next prime is 1228485653. The reversal of 1228485630 is 365848221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132945 + ... + 141884.

It is an arithmetic number, because the mean of its divisors is an integer number (92755125).

Almost surely, 2^1228485630 is an apocalyptic number.

1228485630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228485630 is an abundant number, since it is smaller than the sum of its proper divisors (1739678370).

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

1228485630 is a wasteful number, since it uses less digits than its factorization.

1228485630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274988.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1228485630 is about 35049.7593429684. The cubic root of 1228485630 is about 1071.0013713529.

The spelling of 1228485630 in words is "one billion, two hundred twenty-eight million, four hundred eighty-five thousand, six hundred thirty".