1918435142 has 16 divisors (see below), whose sum is σ = 3281306112. Its totient is φ = 833347200.

The previous prime is 1918435069. The next prime is 1918435151. The reversal of 1918435142 is 2415348191.

It is a junction number, because it is equal to n+sod(n) for n = 1918435096 and 1918435105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169734 + ... + 2170617.

It is an arithmetic number, because the mean of its divisors is an integer number (205081632).

Almost surely, 2^1918435142 is an apocalyptic number.

1918435142 is a deficient number, since it is larger than the sum of its proper divisors (1362870970).

1918435142 is a wasteful number, since it uses less digits than its factorization.

1918435142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340383.

The product of its digits is 34560, while the sum is 38.

The square root of 1918435142 is about 43799.9445433439. The cubic root of 1918435142 is about 1242.5552454900. Note that the first 3 decimals are identical.

The spelling of 1918435142 in words is "one billion, nine hundred eighteen million, four hundred thirty-five thousand, one hundred forty-two".