1023443402 has 8 divisors (see below), whose sum is σ = 1535422500. Its totient is φ = 511635904.

The previous prime is 1023443389. The next prime is 1023443423. The reversal of 1023443402 is 2043443201.

It can be written as a sum of positive squares in 2 ways, for example, as 1023424081 + 19321 = 31991^2 + 139^2 .

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, 26777 + ... + 52572.

Almost surely, 2^1023443402 is an apocalyptic number.

1023443402 is a deficient number, since it is larger than the sum of its proper divisors (511979098).

1023443402 is an equidigital number, since it uses as much as digits as its factorization.

1023443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85800.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1023443402 is about 31991.3019741304. The cubic root of 1023443402 is about 1007.7541845425.

Adding to 1023443402 its reverse (2043443201), we get a palindrome (3066886603).

The spelling of 1023443402 in words is "one billion, twenty-three million, four hundred forty-three thousand, four hundred two".