1920945308 has 24 divisors (see below), whose sum is σ = 3395949648. Its totient is φ = 950697216.

The previous prime is 1920945307. The next prime is 1920945329. The reversal of 1920945308 is 8035490291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920945307) 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, 396710 + ... + 401522.

It is an arithmetic number, because the mean of its divisors is an integer number (141497902).

Almost surely, 2^1920945308 is an apocalyptic number.

It is an amenable number.

1920945308 is a deficient number, since it is larger than the sum of its proper divisors (1475004340).

1920945308 is a wasteful number, since it uses less digits than its factorization.

1920945308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5811 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1920945308 is about 43828.5900754291. The cubic root of 1920945308 is about 1243.0969475080.

The spelling of 1920945308 in words is "one billion, nine hundred twenty million, nine hundred forty-five thousand, three hundred eight".