2036845921 has 4 divisors (see below), whose sum is σ = 2222013744. Its totient is φ = 1851678100.

The previous prime is 2036845907. The next prime is 2036845957. The reversal of 2036845921 is 1295486302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2036845921 - 2¹⁹ = 2036321633 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2036845991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92583895 + ... + 92583916.

It is an arithmetic number, because the mean of its divisors is an integer number (555503436).

Almost surely, 2^2036845921 is an apocalyptic number.

It is an amenable number.

2036845921 is a deficient number, since it is larger than the sum of its proper divisors (185167823).

2036845921 is a wasteful number, since it uses less digits than its factorization.

2036845921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185167822.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2036845921 is about 45131.4294145444. The cubic root of 2036845921 is about 1267.6111750937.

The spelling of 2036845921 in words is "two billion, thirty-six million, eight hundred forty-five thousand, nine hundred twenty-one".