1022002 has 4 divisors (see below), whose sum is σ = 1533006. Its totient is φ = 511000.

The previous prime is 1021973. The next prime is 1022011. The reversal of 1022002 is 2002201.

It is a happy number.

1022002 is nontrivially palindromic in base 3.

1022002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2002201 = 19 ⋅105379.

It can be written as a sum of positive squares in only one way, i.e., 707281 + 314721 = 841^2 + 561^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255499 + ... + 255502.

2^1022002 is an apocalyptic number.

1022002 is a deficient number, since it is larger than the sum of its proper divisors (511004).

1022002 is an equidigital number, since it uses as much as digits as its factorization.

1022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511003.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1022002 is about 1010.9411456658. The cubic root of 1022002 is about 100.7280860417.

Adding to 1022002 its reverse (2002201), we get a palindrome (3024203).

The spelling of 1022002 in words is "one million, twenty-two thousand, two".