1228961748 has 36 divisors (see below), whose sum is σ = 3335754912. Its totient is φ = 351131760.

The previous prime is 1228961731. The next prime is 1228961749. The reversal of 1228961748 is 8471698221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1228961697 and 1228961706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228961749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044448 + ... + 1045623.

Almost surely, 2^1228961748 is an apocalyptic number.

It is an amenable number.

1228961748 is an abundant number, since it is smaller than the sum of its proper divisors (2106793164).

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

1228961748 is a wasteful number, since it uses less digits than its factorization.

1228961748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090092 (or 2090083 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 1228961748 is about 35056.5507145241. The cubic root of 1228961748 is about 1071.1397143546.

The spelling of 1228961748 in words is "one billion, two hundred twenty-eight million, nine hundred sixty-one thousand, seven hundred forty-eight".