2144402039 has 4 divisors (see below), whose sum is σ = 2309356056. Its totient is φ = 1979448024.

The previous prime is 2144402021. The next prime is 2144402047. The reversal of 2144402039 is 9302044412.

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 2144402039 - 2²⁸ = 1875966583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144402059) 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, 82476989 + ... + 82477014.

It is an arithmetic number, because the mean of its divisors is an integer number (577339014).

Almost surely, 2^2144402039 is an apocalyptic number.

2144402039 is a deficient number, since it is larger than the sum of its proper divisors (164954017).

2144402039 is a wasteful number, since it uses less digits than its factorization.

2144402039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164954016.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2144402039 is about 46307.6887676334. The cubic root of 2144402039 is about 1289.5417395561.

The spelling of 2144402039 in words is "two billion, one hundred forty-four million, four hundred two thousand, thirty-nine".