1984402 has 12 divisors (see below), whose sum is σ = 3462750. Its totient is φ = 850416.

The previous prime is 1984399. The next prime is 1984429. The reversal of 1984402 is 2044891.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 159201 = 1351^2 + 399^2 .

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 5 ways as a sum of consecutive naturals, for example, 10027 + ... + 10222.

2^1984402 is an apocalyptic number.

1984402 is a deficient number, since it is larger than the sum of its proper divisors (1478348).

1984402 is a wasteful number, since it uses less digits than its factorization.

1984402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20265 (or 20258 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1984402 is about 1408.6880421158. The cubic root of 1984402 is about 125.6637123170.

The spelling of 1984402 in words is "one million, nine hundred eighty-four thousand, four hundred two".