1704928990 has 16 divisors (see below), whose sum is σ = 3069382752. Its totient is φ = 681858144.

The previous prime is 1704928949. The next prime is 1704928993. The reversal of 1704928990 is 998294071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1704928993) 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 7 ways as a sum of consecutive naturals, for example, 76612 + ... + 96328.

It is an arithmetic number, because the mean of its divisors is an integer number (191836422).

Almost surely, 2^1704928990 is an apocalyptic number.

1704928990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1704928990 is a deficient number, since it is larger than the sum of its proper divisors (1364453762).

1704928990 is a wasteful number, since it uses less digits than its factorization.

1704928990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28371.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1704928990 is about 41290.7857760058. The cubic root of 1704928990 is about 1194.6355429951.

The spelling of 1704928990 in words is "one billion, seven hundred four million, nine hundred twenty-eight thousand, nine hundred ninety".