1439389461 has 16 divisors (see below), whose sum is σ = 1955501568. Its totient is φ = 941564400.

The previous prime is 1439389459. The next prime is 1439389477. The reversal of 1439389461 is 1649839341.

It is not a de Polignac number, because 1439389461 - 2¹ = 1439389459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1439389461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439389661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28930 + ... + 60956.

It is an arithmetic number, because the mean of its divisors is an integer number (122218848).

Almost surely, 2^1439389461 is an apocalyptic number.

It is an amenable number.

1439389461 is a deficient number, since it is larger than the sum of its proper divisors (516112107).

1439389461 is a wasteful number, since it uses less digits than its factorization.

1439389461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32312.

The product of its digits is 559872, while the sum is 48.

The square root of 1439389461 is about 37939.2865114778. The cubic root of 1439389461 is about 1129.0836178756.

The spelling of 1439389461 in words is "one billion, four hundred thirty-nine million, three hundred eighty-nine thousand, four hundred sixty-one".