2146388043 has 16 divisors (see below), whose sum is σ = 2935851776. Its totient is φ = 1394094240.

The previous prime is 2146388039. The next prime is 2146388053. The reversal of 2146388043 is 3408836412.

It is a happy number.

It is not a de Polignac number, because 2146388043 - 2² = 2146388039 is a prime.

It is a super-2 number, since 2×2146388043² = 9213963262266739698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146387992 and 2146388010.

It is not an unprimeable number, because it can be changed into a prime (2146388033) 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, 30258 + ... + 72168.

It is an arithmetic number, because the mean of its divisors is an integer number (183490736).

Almost surely, 2^2146388043 is an apocalyptic number.

2146388043 is a deficient number, since it is larger than the sum of its proper divisors (789463733).

2146388043 is a wasteful number, since it uses less digits than its factorization.

2146388043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42354.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 2146388043 is about 46329.1273714496. The cubic root of 2146388043 is about 1289.9397129449.

The spelling of 2146388043 in words is "two billion, one hundred forty-six million, three hundred eighty-eight thousand, forty-three".