1228618098 has 32 divisors (see below), whose sum is σ = 2732030400. Its totient is φ = 409274208.

The previous prime is 1228618073. The next prime is 1228618099. The reversal of 1228618098 is 8908168221.

It is a happy number.

1228618098 is a `hidden beast` number, since 1 + 2 + 28 + 618 + 0 + 9 + 8 = 666.

1228618098 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1228618099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88173 + ... + 101151.

It is an arithmetic number, because the mean of its divisors is an integer number (85375950).

Almost surely, 2^1228618098 is an apocalyptic number.

1228618098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1228618098 is an abundant number, since it is smaller than the sum of its proper divisors (1503412302).

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

1228618098 is a wasteful number, since it uses less digits than its factorization.

1228618098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14743 (or 14737 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 1228618098 is about 35051.6490054320. The cubic root of 1228618098 is about 1071.0398654432.

The spelling of 1228618098 in words is "one billion, two hundred twenty-eight million, six hundred eighteen thousand, ninety-eight".