1006402 has 8 divisors (see below), whose sum is σ = 1521036. Its totient is φ = 499392.

The previous prime is 1006393. The next prime is 1006433. The reversal of 1006402 is 2046001.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 47961 = 979^2 + 219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1563 + ... + 2110.

2^1006402 is an apocalyptic number.

1006402 is a deficient number, since it is larger than the sum of its proper divisors (514634).

1006402 is a wasteful number, since it uses less digits than its factorization.

1006402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1006402 is about 1003.1958931335. The cubic root of 1006402 is about 100.2129462172.

The spelling of 1006402 in words is "one million, six thousand, four hundred two".