10001420 has 72 divisors (see below), whose sum is σ = 24902640. Its totient is φ = 3344640.

The previous prime is 10001419. The next prime is 10001441. The reversal of 10001420 is 2410001.

It is a junction number, because it is equal to n+sod(n) for n = 10001398 and 10001407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37046 + ... + 37314.

It is an arithmetic number, because the mean of its divisors is an integer number (345870).

Almost surely, 2^10001420 is an apocalyptic number.

10001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12451320).

10001420 is an abundant number, since it is smaller than the sum of its proper divisors (14901220).

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

10001420 is a wasteful number, since it uses less digits than its factorization.

10001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 10001420 is about 3162.5021739123. The cubic root of 10001420 is about 215.4536661781.

Adding to 10001420 its reverse (2410001), we get a palindrome (12411421).

The spelling of 10001420 in words is "ten million, one thousand, four hundred twenty".