1039490784 has 72 divisors (see below), whose sum is σ = 2961078120. Its totient is φ = 345907968.

The previous prime is 1039490759. The next prime is 1039490801. The reversal of 1039490784 is 4870949301.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187054 + ... + 192530.

It is an arithmetic number, because the mean of its divisors is an integer number (41126085).

Almost surely, 2^1039490784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1039490784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1480539060).

1039490784 is an abundant number, since it is smaller than the sum of its proper divisors (1921587336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1039490784 is a wasteful number, since it uses less digits than its factorization.

1039490784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152 (or 6141 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1039490784 is about 32241.1349676155. The cubic root of 1039490784 is about 1012.9940188186.

The spelling of 1039490784 in words is "one billion, thirty-nine million, four hundred ninety thousand, seven hundred eighty-four".