1920894341 has 4 divisors (see below), whose sum is σ = 1927982784. Its totient is φ = 1913805900.

The previous prime is 1920894293. The next prime is 1920894343. The reversal of 1920894341 is 1434980291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1920894341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920894343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3543815 + ... + 3544356.

It is an arithmetic number, because the mean of its divisors is an integer number (481995696).

Almost surely, 2^1920894341 is an apocalyptic number.

It is an amenable number.

1920894341 is a deficient number, since it is larger than the sum of its proper divisors (7088443).

1920894341 is an equidigital number, since it uses as much as digits as its factorization.

1920894341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088442.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1920894341 is about 43828.0086360309. The cubic root of 1920894341 is about 1243.0859533580.

The spelling of 1920894341 in words is "one billion, nine hundred twenty million, eight hundred ninety-four thousand, three hundred forty-one".