10420002 has 40 divisors (see below), whose sum is σ = 23574672. Its totient is φ = 3439800.

The previous prime is 10420001. The next prime is 10420009. The reversal of 10420002 is 20002401.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10420001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20977 + ... + 21467.

Almost surely, 2^10420002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10420002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11787336).

10420002 is an abundant number, since it is smaller than the sum of its proper divisors (13154670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10420002 is a wasteful number, since it uses less digits than its factorization.

10420002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 10420002 is about 3228.0027881029. The cubic root of 10420002 is about 218.4184231530.

Adding to 10420002 its reverse (20002401), we get a palindrome (30422403).

The spelling of 10420002 in words is "ten million, four hundred twenty thousand, two".