1444404039 has 16 divisors (see below), whose sum is σ = 2130072672. Its totient is φ = 864839808.

The previous prime is 1444404029. The next prime is 1444404043. The reversal of 1444404039 is 9304044441.

It is not a de Polignac number, because 1444404039 - 2⁵ = 1444404007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444404029) 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, 499044 + ... + 501929.

It is an arithmetic number, because the mean of its divisors is an integer number (133129542).

Almost surely, 2^1444404039 is an apocalyptic number.

1444404039 is a deficient number, since it is larger than the sum of its proper divisors (685668633).

1444404039 is a wasteful number, since it uses less digits than its factorization.

1444404039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001026.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1444404039 is about 38005.3159308010. The cubic root of 1444404039 is about 1130.3932739778.

The spelling of 1444404039 in words is "one billion, four hundred forty-four million, four hundred four thousand, thirty-nine".