1022023402 has 8 divisors (see below), whose sum is σ = 1558167012. Its totient is φ = 502634400.

The previous prime is 1022023399. The next prime is 1022023403. The reversal of 1022023402 is 2043202201.

It can be written as a sum of positive squares in 2 ways, for example, as 769563081 + 252460321 = 27741^2 + 15889^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1022023403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4188499 + ... + 4188742.

Almost surely, 2^1022023402 is an apocalyptic number.

1022023402 is a deficient number, since it is larger than the sum of its proper divisors (536143610).

1022023402 is an equidigital number, since it uses as much as digits as its factorization.

1022023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8377304.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1022023402 is about 31969.1007380564. The cubic root of 1022023402 is about 1007.2878916078.

Adding to 1022023402 its reverse (2043202201), we get a palindrome (3065225603).

The spelling of 1022023402 in words is "one billion, twenty-two million, twenty-three thousand, four hundred two".