10019812 has 24 divisors (see below), whose sum is σ = 19962432. Its totient is φ = 4356000.

The previous prime is 10019791. The next prime is 10019813. The reversal of 10019812 is 21891001.

10019812 = 649² + 650² + ... + 671².

10019812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (10019813) 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, 3939 + ... + 5962.

It is an arithmetic number, because the mean of its divisors is an integer number (831768).

Almost surely, 2^10019812 is an apocalyptic number.

It is an amenable number.

10019812 is a deficient number, since it is larger than the sum of its proper divisors (9942620).

10019812 is a wasteful number, since it uses less digits than its factorization.

10019812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9939 (or 9937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 10019812 is about 3165.4086624005. The cubic root of 10019812 is about 215.5856540124.

The spelling of 10019812 in words is "ten million, nineteen thousand, eight hundred twelve".