1934944143 has 32 divisors (see below), whose sum is σ = 2972884992. Its totient is φ = 1108447200.

The previous prime is 1934944139. The next prime is 1934944147. The reversal of 1934944143 is 3414494391.

It is a Cunningham number, because it is equal to 43988²-1.

It is an interprime number because it is at equal distance from previous prime (1934944139) and next prime (1934944147).

It is not a de Polignac number, because 1934944143 - 2² = 1934944139 is a prime.

It is a super-3 number, since 3×1934944143³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1934944095 and 1934944104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934944147) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 21996 + ... + 65982.

It is an arithmetic number, because the mean of its divisors is an integer number (92902656).

Almost surely, 2^1934944143 is an apocalyptic number.

1934944143 is a deficient number, since it is larger than the sum of its proper divisors (1037940849).

1934944143 is a wasteful number, since it uses less digits than its factorization.

1934944143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44075.

The product of its digits is 186624, while the sum is 42.

The square root of 1934944143 is about 43987.9999886333. Note that the first 4 decimals coincide. The cubic root of 1934944143 is about 1246.1093198238.

The spelling of 1934944143 in words is "one billion, nine hundred thirty-four million, nine hundred forty-four thousand, one hundred forty-three".