2045456445 has 16 divisors (see below), whose sum is σ = 3293579520. Its totient is φ = 1083960384.

The previous prime is 2045456437. The next prime is 2045456461. The reversal of 2045456445 is 5446545402.

It is not a de Polignac number, because 2045456445 - 2³ = 2045456437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431925 + ... + 436634.

It is an arithmetic number, because the mean of its divisors is an integer number (205848720).

Almost surely, 2^2045456445 is an apocalyptic number.

It is an amenable number.

2045456445 is a deficient number, since it is larger than the sum of its proper divisors (1248123075).

2045456445 is a wasteful number, since it uses less digits than its factorization.

2045456445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868724.

The product of its (nonzero) digits is 384000, while the sum is 39.

The square root of 2045456445 is about 45226.7226869248. The cubic root of 2045456445 is about 1269.3948891552.

The spelling of 2045456445 in words is "two billion, forty-five million, four hundred fifty-six thousand, four hundred forty-five".