10143820 has 24 divisors (see below), whose sum is σ = 21990528. Its totient is φ = 3926400.

The previous prime is 10143817. The next prime is 10143821. The reversal of 10143820 is 2834101.

It is not an unprimeable number, because it can be changed into a prime (10143821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7561 + ... + 8800.

It is an arithmetic number, because the mean of its divisors is an integer number (916272).

Almost surely, 2^10143820 is an apocalyptic number.

10143820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143820 is an abundant number, since it is smaller than the sum of its proper divisors (11846708).

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

10143820 is a wasteful number, since it uses less digits than its factorization.

10143820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401 (or 16399 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10143820 is about 3184.9364200875. The cubic root of 10143820 is about 216.4713927643.

Adding to 10143820 its reverse (2834101), we get a palindrome (12977921).

The spelling of 10143820 in words is "ten million, one hundred forty-three thousand, eight hundred twenty".