1204163730 has 288 divisors, whose sum is σ = 4028289408. Its totient is φ = 246758400.

The previous prime is 1204163717. The next prime is 1204163743. The reversal of 1204163730 is 373614021.

1204163730 is a `hidden beast` number, since 1 + 20 + 4 + 1 + 637 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1204163717) and next prime (1204163743).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1204163694 and 1204163703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4996410 + ... + 4996650.

It is an arithmetic number, because the mean of its divisors is an integer number (13987116).

Almost surely, 2^1204163730 is an apocalyptic number.

1204163730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204163730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014144704).

1204163730 is an abundant number, since it is smaller than the sum of its proper divisors (2824125678).

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

1204163730 is a wasteful number, since it uses less digits than its factorization.

1204163730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1204163730 is about 34701.0623756680. The cubic root of 1204163730 is about 1063.8862124392.

Adding to 1204163730 its reverse (373614021), we get a palindrome (1577777751).

The spelling of 1204163730 in words is "one billion, two hundred four million, one hundred sixty-three thousand, seven hundred thirty".