1228200192 has 72 divisors (see below), whose sum is σ = 3632024480. Its totient is φ = 409397760.

The previous prime is 1228200137. The next prime is 1228200209. The reversal of 1228200192 is 2910028221.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81934 + ... + 95757.

Almost surely, 2^1228200192 is an apocalyptic number.

1228200192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1228200192 is an abundant number, since it is smaller than the sum of its proper divisors (2403824288).

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

1228200192 is an equidigital number, since it uses as much as digits as its factorization.

1228200192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177716 (or 177696 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1228200192 is about 35045.6872096981. The cubic root of 1228200192 is about 1070.9184160563.

The spelling of 1228200192 in words is "one billion, two hundred twenty-eight million, two hundred thousand, one hundred ninety-two".