1660428230 has 16 divisors (see below), whose sum is σ = 3058277904. Its totient is φ = 648725280.

The previous prime is 1660428229. The next prime is 1660428239. The reversal of 1660428230 is 328240661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660428239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930301 + ... + 1931160.

It is an arithmetic number, because the mean of its divisors is an integer number (191142369).

Almost surely, 2^1660428230 is an apocalyptic number.

1660428230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1660428230 is a deficient number, since it is larger than the sum of its proper divisors (1397849674).

1660428230 is a wasteful number, since it uses less digits than its factorization.

1660428230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861511.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1660428230 is about 40748.3524820329. The cubic root of 1660428230 is about 1184.1499550416.

Adding to 1660428230 its reverse (328240661), we get a palindrome (1988668891).

The spelling of 1660428230 in words is "one billion, six hundred sixty million, four hundred twenty-eight thousand, two hundred thirty".