2042768391 has 8 divisors (see below), whose sum is σ = 2842112640. Its totient is φ = 1302634872.

The previous prime is 2042768383. The next prime is 2042768401. The reversal of 2042768391 is 1938672402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2042768391 - 2³ = 2042768383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042763391) 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, 14802601 + ... + 14802738.

It is an arithmetic number, because the mean of its divisors is an integer number (355264080).

Almost surely, 2^2042768391 is an apocalyptic number.

2042768391 is a deficient number, since it is larger than the sum of its proper divisors (799344249).

2042768391 is a wasteful number, since it uses less digits than its factorization.

2042768391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29605365.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2042768391 is about 45196.9953757990. The cubic root of 2042768391 is about 1268.8385833594.

The spelling of 2042768391 in words is "two billion, forty-two million, seven hundred sixty-eight thousand, three hundred ninety-one".