1420202002 has 4 divisors (see below), whose sum is σ = 2130303006. Its totient is φ = 710101000.

The previous prime is 1420201997. The next prime is 1420202009. The reversal of 1420202002 is 2002020241.

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., 1296792121 + 123409881 = 36011^2 + 11109^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1420202009) by changing a digit.

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 as a sum of consecutive naturals, namely, 355050499 + ... + 355050502.

Almost surely, 2^1420202002 is an apocalyptic number.

1420202002 is a deficient number, since it is larger than the sum of its proper divisors (710101004).

1420202002 is an equidigital number, since it uses as much as digits as its factorization.

1420202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710101003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1420202002 is about 37685.5675557633. The cubic root of 1420202002 is about 1124.0441598342.

Adding to 1420202002 its reverse (2002020241), we get a palindrome (3422222243).

The spelling of 1420202002 in words is "one billion, four hundred twenty million, two hundred two thousand, two".