1983526394 has 16 divisors (see below), whose sum is σ = 3268054080. Its totient is φ = 898714080.

The previous prime is 1983526393. The next prime is 1983526409. The reversal of 1983526394 is 4936253891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1983526393) 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, 1133867 + ... + 1135614.

It is an arithmetic number, because the mean of its divisors is an integer number (204253380).

Almost surely, 2^1983526394 is an apocalyptic number.

1983526394 is a deficient number, since it is larger than the sum of its proper divisors (1284527686).

1983526394 is a wasteful number, since it uses less digits than its factorization.

1983526394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269525.

The product of its digits is 1399680, while the sum is 50.

The square root of 1983526394 is about 44536.7982010382. The cubic root of 1983526394 is about 1256.4522680046.

The spelling of 1983526394 in words is "one billion, nine hundred eighty-three million, five hundred twenty-six thousand, three hundred ninety-four".