1904684542 has 8 divisors (see below), whose sum is σ = 2861058600. Its totient is φ = 950998344.

The previous prime is 1904684519. The next prime is 1904684543. The reversal of 1904684542 is 2454864091.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904684543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670192 + ... + 673027.

It is an arithmetic number, because the mean of its divisors is an integer number (357632325).

Almost surely, 2^1904684542 is an apocalyptic number.

1904684542 is a deficient number, since it is larger than the sum of its proper divisors (956374058).

1904684542 is a wasteful number, since it uses less digits than its factorization.

1904684542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343930.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 1904684542 is about 43642.6917364179. The cubic root of 1904684542 is about 1239.5794060026.

The spelling of 1904684542 in words is "one billion, nine hundred four million, six hundred eighty-four thousand, five hundred forty-two".