2140855942 has 8 divisors (see below), whose sum is σ = 3211929000. Its totient is φ = 1070212944.

The previous prime is 2140855919. The next prime is 2140855943. The reversal of 2140855942 is 2495580412.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2140855895 and 2140855904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140855943) 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, 94767 + ... + 115162.

It is an arithmetic number, because the mean of its divisors is an integer number (401491125).

Almost surely, 2^2140855942 is an apocalyptic number.

2140855942 is a deficient number, since it is larger than the sum of its proper divisors (1071073058).

2140855942 is a wasteful number, since it uses less digits than its factorization.

2140855942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215030.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 2140855942 is about 46269.3844999045. The cubic root of 2140855942 is about 1288.8305291644.

The spelling of 2140855942 in words is "two billion, one hundred forty million, eight hundred fifty-five thousand, nine hundred forty-two".