1984426 has 16 divisors (see below), whose sum is σ = 3079944. Its totient is φ = 958464.

The previous prime is 1984399. The next prime is 1984429. The reversal of 1984426 is 6244891.

It can be written as a sum of positive squares in 4 ways, for example, as 1625625 + 358801 = 1275^2 + 599^2 .

It is a d-powerful number, because it can be written as 1 + 9⁵ + 8⁵ + 4⁷ + 4⁸ + 2¹⁷ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 1984391 and 1984400.

It is not an unprimeable number, because it can be changed into a prime (1984429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10186 + ... + 10378.

2^1984426 is an apocalyptic number.

1984426 is a deficient number, since it is larger than the sum of its proper divisors (1095518).

1984426 is a wasteful number, since it uses less digits than its factorization.

1984426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 13824, while the sum is 34.

The square root of 1984426 is about 1408.6965606546. The cubic root of 1984426 is about 125.6642189208.

It can be divided in two parts, 198 and 4426, that added together give a square (4624 = 68²).

The spelling of 1984426 in words is "one million, nine hundred eighty-four thousand, four hundred twenty-six".