1983930 has 32 divisors (see below), whose sum is σ = 5128704. Its totient is φ = 488256.

The previous prime is 1983929. The next prime is 1983931. The reversal of 1983930 is 393891.

It is an interprime number because it is at equal distance from previous prime (1983929) and next prime (1983931).

It is a junction number, because it is equal to n+sod(n) for n = 1983891 and 1983900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2154 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (160272).

2^1983930 is an apocalyptic number.

1983930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1983930 is an abundant number, since it is smaller than the sum of its proper divisors (3144774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1983930 is a wasteful number, since it uses less digits than its factorization.

1983930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1983930 is about 1408.5205003833. The cubic root of 1983930 is about 125.6537482782.

The spelling of 1983930 in words is "one million, nine hundred eighty-three thousand, nine hundred thirty".