2045303644 has 12 divisors (see below), whose sum is σ = 3597451704. Its totient is φ = 1017460304.

The previous prime is 2045303639. The next prime is 2045303657. The reversal of 2045303644 is 4463035402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296994 + ... + 1298569.

It is an arithmetic number, because the mean of its divisors is an integer number (299787642).

Almost surely, 2^2045303644 is an apocalyptic number.

It is an amenable number.

2045303644 is a deficient number, since it is larger than the sum of its proper divisors (1552148060).

2045303644 is a wasteful number, since it uses less digits than its factorization.

2045303644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595764 (or 2595762 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2045303644 is about 45225.0333775443. The cubic root of 2045303644 is about 1269.3632793175.

The spelling of 2045303644 in words is "two billion, forty-five million, three hundred three thousand, six hundred forty-four".