1204166409 has 8 divisors (see below), whose sum is σ = 1606292832. Its totient is φ = 802408800.

The previous prime is 1204166399. The next prime is 1204166417. The reversal of 1204166409 is 9046614021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1204166409 - 2⁵ = 1204166377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204166409.

It is not an unprimeable number, because it can be changed into a prime (1204166429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84492 + ... + 97709.

It is an arithmetic number, because the mean of its divisors is an integer number (200786604).

Almost surely, 2^1204166409 is an apocalyptic number.

It is an amenable number.

1204166409 is a deficient number, since it is larger than the sum of its proper divisors (402126423).

1204166409 is a wasteful number, since it uses less digits than its factorization.

1204166409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184407.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1204166409 is about 34701.1009767702. The cubic root of 1204166409 is about 1063.8870014097.

The spelling of 1204166409 in words is "one billion, two hundred four million, one hundred sixty-six thousand, four hundred nine".