2042164939 has 4 divisors (see below), whose sum is σ = 2097358624. Its totient is φ = 1986971256.

The previous prime is 2042164937. The next prime is 2042164961. The reversal of 2042164939 is 9394612402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2042164939 - 2¹ = 2042164937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042164937) 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, 27596787 + ... + 27596860.

It is an arithmetic number, because the mean of its divisors is an integer number (524339656).

Almost surely, 2^2042164939 is an apocalyptic number.

2042164939 is a deficient number, since it is larger than the sum of its proper divisors (55193685).

2042164939 is an equidigital number, since it uses as much as digits as its factorization.

2042164939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55193684.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 2042164939 is about 45190.3190849545. The cubic root of 2042164939 is about 1268.7136289767.

The spelling of 2042164939 in words is "two billion, forty-two million, one hundred sixty-four thousand, nine hundred thirty-nine".