1066402 has 8 divisors (see below), whose sum is σ = 1626012. Its totient is φ = 524400.

The previous prime is 1066399. The next prime is 1066409. The reversal of 1066402 is 2046601.

It can be written as a sum of positive squares in 2 ways, for example, as 844561 + 221841 = 919^2 + 471^2 .

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

It is a super-2 number, since 2×1066402² = 2274426451208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066402.

It is not an unprimeable number, because it can be changed into a prime (1066409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4249 + ... + 4492.

2^1066402 is an apocalyptic number.

1066402 is a deficient number, since it is larger than the sum of its proper divisors (559610).

1066402 is an equidigital number, since it uses as much as digits as its factorization.

1066402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1066402 is about 1032.6674198405. The cubic root of 1066402 is about 102.1661395966.

The spelling of 1066402 in words is "one million, sixty-six thousand, four hundred two".