1942788111 has 16 divisors (see below), whose sum is σ = 2834034048. Its totient is φ = 1174047200.

The previous prime is 1942788061. The next prime is 1942788143. The reversal of 1942788111 is 1118872491.

It is a cyclic number.

It is not a de Polignac number, because 1942788111 - 2⁹ = 1942787599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942788161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73380 + ... + 96281.

It is an arithmetic number, because the mean of its divisors is an integer number (177127128).

Almost surely, 2^1942788111 is an apocalyptic number.

1942788111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1942788111 is a deficient number, since it is larger than the sum of its proper divisors (891245937).

1942788111 is a wasteful number, since it uses less digits than its factorization.

1942788111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170022.

The product of its digits is 32256, while the sum is 42.

The square root of 1942788111 is about 44077.0701272215. The cubic root of 1942788111 is about 1247.7908951980.

The spelling of 1942788111 in words is "one billion, nine hundred forty-two million, seven hundred eighty-eight thousand, one hundred eleven".