1228108740 has 48 divisors (see below), whose sum is σ = 3451533120. Its totient is φ = 326273920.

The previous prime is 1228108729. The next prime is 1228108751. The reversal of 1228108740 is 478018221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1228108729) and next prime (1228108751).

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, 21906 + ... + 54185.

It is an arithmetic number, because the mean of its divisors is an integer number (71906940).

Almost surely, 2^1228108740 is an apocalyptic number.

1228108740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228108740 is an abundant number, since it is smaller than the sum of its proper divisors (2223424380).

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

1228108740 is a wasteful number, since it uses less digits than its factorization.

1228108740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76372 (or 76370 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 1228108740 is about 35044.3824314254. The cubic root of 1228108740 is about 1070.8918351394.

The spelling of 1228108740 in words is "one billion, two hundred twenty-eight million, one hundred eight thousand, seven hundred forty".