1228770536 has 32 divisors (see below), whose sum is σ = 2652315840. Its totient is φ = 522768768.

The previous prime is 1228770511. The next prime is 1228770539. The reversal of 1228770536 is 6350778221.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1228770493 and 1228770502.

It is not an unprimeable number, because it can be changed into a prime (1228770539) 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, 72410 + ... + 87753.

It is an arithmetic number, because the mean of its divisors is an integer number (82884870).

Almost surely, 2^1228770536 is an apocalyptic number.

It is an amenable number.

1228770536 is an abundant number, since it is smaller than the sum of its proper divisors (1423545304).

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

1228770536 is a wasteful number, since it uses less digits than its factorization.

1228770536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160313 (or 160309 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1228770536 is about 35053.8234148573. The cubic root of 1228770536 is about 1071.0841592243.

The spelling of 1228770536 in words is "one billion, two hundred twenty-eight million, seven hundred seventy thousand, five hundred thirty-six".