1228668270 has 16 divisors (see below), whose sum is σ = 2948803920. Its totient is φ = 327644864.

The previous prime is 1228668263. The next prime is 1228668271. The reversal of 1228668270 is 728668221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228668271) 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, 20477775 + ... + 20477834.

It is an arithmetic number, because the mean of its divisors is an integer number (184300245).

Almost surely, 2^1228668270 is an apocalyptic number.

1228668270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228668270 is an abundant number, since it is smaller than the sum of its proper divisors (1720135650).

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

1228668270 is a wasteful number, since it uses less digits than its factorization.

1228668270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40955619.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 1228668270 is about 35052.3646848540. The cubic root of 1228668270 is about 1071.0544442834.

The spelling of 1228668270 in words is "one billion, two hundred twenty-eight million, six hundred sixty-eight thousand, two hundred seventy".