1904231109 has 8 divisors (see below), whose sum is σ = 2769790752. Its totient is φ = 1154079440.

The previous prime is 1904231107. The next prime is 1904231123. The reversal of 1904231109 is 9011324091.

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

It is a cyclic number.

It is not a de Polignac number, because 1904231109 - 2¹ = 1904231107 is a prime.

It is a super-2 number, since 2×1904231109² = 7252192232966739762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904231107) by changing a digit.

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, 28851954 + ... + 28852019.

It is an arithmetic number, because the mean of its divisors is an integer number (346223844).

Almost surely, 2^1904231109 is an apocalyptic number.

It is an amenable number.

1904231109 is a deficient number, since it is larger than the sum of its proper divisors (865559643).

1904231109 is a wasteful number, since it uses less digits than its factorization.

1904231109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57703987.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1904231109 is about 43637.4965940990. The cubic root of 1904231109 is about 1239.4810326142.

The spelling of 1904231109 in words is "one billion, nine hundred four million, two hundred thirty-one thousand, one hundred nine".