2045835921 has 8 divisors (see below), whose sum is σ = 2736497440. Its totient is φ = 1359532512.

The previous prime is 2045835919. The next prime is 2045835949. The reversal of 2045835921 is 1295385402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2045835921 - 2¹ = 2045835919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2045835921.

It is not an unprimeable number, because it can be changed into a prime (2045835521) 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, 1088431 + ... + 1090308.

It is an arithmetic number, because the mean of its divisors is an integer number (342062180).

Almost surely, 2^2045835921 is an apocalyptic number.

It is an amenable number.

2045835921 is a deficient number, since it is larger than the sum of its proper divisors (690661519).

2045835921 is a wasteful number, since it uses less digits than its factorization.

2045835921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179055.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 2045835921 is about 45230.9177554469. The cubic root of 2045835921 is about 1269.4733842853.

The spelling of 2045835921 in words is "two billion, forty-five million, eight hundred thirty-five thousand, nine hundred twenty-one".