1728352490 has 16 divisors (see below), whose sum is σ = 3163764960. Its totient is φ = 679623120.

The previous prime is 1728352487. The next prime is 1728352513. The reversal of 1728352490 is 942538271.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 1464116 + ... + 1465295.

It is an arithmetic number, because the mean of its divisors is an integer number (197735310).

Almost surely, 2^1728352490 is an apocalyptic number.

1728352490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1728352490 is a deficient number, since it is larger than the sum of its proper divisors (1435412470).

1728352490 is a wasteful number, since it uses less digits than its factorization.

1728352490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929477.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1728352490 is about 41573.4589612171. The cubic root of 1728352490 is about 1200.0815893599.

The spelling of 1728352490 in words is "one billion, seven hundred twenty-eight million, three hundred fifty-two thousand, four hundred ninety".