10202420402 has 32 divisors (see below), whose sum is σ = 15925279104. Its totient is φ = 4898185600.

The previous prime is 10202420387. The next prime is 10202420407. The reversal of 10202420402 is 20402420201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10202420407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4499273 + ... + 4501539.

It is an arithmetic number, because the mean of its divisors is an integer number (497664972).

Almost surely, 2^10202420402 is an apocalyptic number.

10202420402 is a deficient number, since it is larger than the sum of its proper divisors (5722858702).

10202420402 is a wasteful number, since it uses less digits than its factorization.

10202420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 10202420402 its reverse (20402420201), we get a palindrome (30604840603).

The spelling of 10202420402 in words is "ten billion, two hundred two million, four hundred twenty thousand, four hundred two".