2012023404 has 18 divisors (see below), whose sum is σ = 5085948140. Its totient is φ = 670674456.

The previous prime is 2012023397. The next prime is 2012023427. The reversal of 2012023404 is 4043202102.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27944734 + ... + 27944805.

Almost surely, 2^2012023404 is an apocalyptic number.

It is an amenable number.

2012023404 is an abundant number, since it is smaller than the sum of its proper divisors (3073924736).

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

2012023404 is a wasteful number, since it uses less digits than its factorization.

2012023404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55889549 (or 55889544 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2012023404 is about 44855.5838664486. The cubic root of 2012023404 is about 1262.4407639952.

Adding to 2012023404 its reverse (4043202102), we get a palindrome (6055225506).

The spelling of 2012023404 in words is "two billion, twelve million, twenty-three thousand, four hundred four".