1720010045 has 32 divisors (see below), whose sum is σ = 2310088704. Its totient is φ = 1220832000.

The previous prime is 1720010023. The next prime is 1720010059. The reversal of 1720010045 is 5400100271.

It is not a de Polignac number, because 1720010045 - 2¹⁰ = 1720009021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1720009999 and 1720010026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301439 + ... + 307091.

It is an arithmetic number, because the mean of its divisors is an integer number (72190272).

Almost surely, 2^1720010045 is an apocalyptic number.

It is an amenable number.

1720010045 is a deficient number, since it is larger than the sum of its proper divisors (590078659).

1720010045 is a wasteful number, since it uses less digits than its factorization.

1720010045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1720010045 is about 41473.0038097073. The cubic root of 1720010045 is about 1198.1476154104.

The spelling of 1720010045 in words is "one billion, seven hundred twenty million, ten thousand, forty-five".