1063642 has 4 divisors (see below), whose sum is σ = 1595466. Its totient is φ = 531820.

The previous prime is 1063637. The next prime is 1063649. The reversal of 1063642 is 2463601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1038361 + 25281 = 1019^2 + 159^2 .

It is a super-2 number, since 2×1063642² = 2262668608328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 0 + 6³ + 3⁸ + 6⁵ + 4¹⁰ + 2⁹ .

It is not an unprimeable number, because it can be changed into a prime (1063649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265909 + ... + 265912.

2^1063642 is an apocalyptic number.

1063642 is a deficient number, since it is larger than the sum of its proper divisors (531824).

1063642 is an equidigital number, since it uses as much as digits as its factorization.

1063642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531823.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1063642 is about 1031.3302090019. The cubic root of 1063642 is about 102.0779232822.

The spelling of 1063642 in words is "one million, sixty-three thousand, six hundred forty-two".