1984730 has 16 divisors (see below), whose sum is σ = 3897504. Its totient is φ = 721680.

The previous prime is 1984729. The next prime is 1984747. The reversal of 1984730 is 374891.

It is a d-powerful number, because it can be written as 1 + 9⁶ + 8⁵ + 4⁸ + 7⁷ + 3¹² + 0 .

It is a nialpdrome in base 8.

It is an unprimeable number.

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, 8912 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (243594).

2^1984730 is an apocalyptic number.

1984730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1984730 is a deficient number, since it is larger than the sum of its proper divisors (1912774).

1984730 is a wasteful number, since it uses less digits than its factorization.

1984730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18061.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1984730 is about 1408.8044576874. The cubic root of 1984730 is about 125.6706355491.

The spelling of 1984730 in words is "one million, nine hundred eighty-four thousand, seven hundred thirty".