1204190988 has 192 divisors, whose sum is σ = 3995163648. Its totient is φ = 271687680.

The previous prime is 1204190959. The next prime is 1204190993. The reversal of 1204190988 is 8890914021.

It is a super-2 number, since 2×1204190988² = 2900151871160832288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 201256 + ... + 207152.

It is an arithmetic number, because the mean of its divisors is an integer number (20808144).

Almost surely, 2^1204190988 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 1204190988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997581824).

1204190988 is an abundant number, since it is smaller than the sum of its proper divisors (2790972660).

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

1204190988 is a wasteful number, since it uses less digits than its factorization.

1204190988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952 (or 5950 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1204190988 is about 34701.4551279914. The cubic root of 1204190988 is about 1063.8942399167.

The spelling of 1204190988 in words is "one billion, two hundred four million, one hundred ninety thousand, nine hundred eighty-eight".