1228197024 has 72 divisors (see below), whose sum is σ = 3498659892. Its totient is φ = 408698880.

The previous prime is 1228197023. The next prime is 1228197043. The reversal of 1228197024 is 4207918221.

It can be written as a sum of positive squares in 2 ways, for example, as 1220244624 + 7952400 = 34932^2 + 2820^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1228197024.

It is not an unprimeable number, because it can be changed into a prime (1228197023) 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, 181282 + ... + 187934.

Almost surely, 2^1228197024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228197024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749329946).

1228197024 is an abundant number, since it is smaller than the sum of its proper divisors (2270462868).

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

1228197024 is a wasteful number, since it uses less digits than its factorization.

1228197024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1228197024 is about 35045.6420115255. The cubic root of 1228197024 is about 1070.9174952856.

The spelling of 1228197024 in words is "one billion, two hundred twenty-eight million, one hundred ninety-seven thousand, twenty-four".