1439975352 has 64 divisors (see below), whose sum is σ = 3763226880. Its totient is φ = 458295552.

The previous prime is 1439975351. The next prime is 1439975371. The reversal of 1439975352 is 2535799341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439975351) 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, 352908 + ... + 356964.

It is an arithmetic number, because the mean of its divisors is an integer number (58800420).

Almost surely, 2^1439975352 is an apocalyptic number.

1439975352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1439975352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881613440).

1439975352 is an abundant number, since it is smaller than the sum of its proper divisors (2323251528).

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

1439975352 is a wasteful number, since it uses less digits than its factorization.

1439975352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732 (or 4728 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 48.

The square root of 1439975352 is about 37947.0071547151. The cubic root of 1439975352 is about 1129.2367916605.

The spelling of 1439975352 in words is "one billion, four hundred thirty-nine million, nine hundred seventy-five thousand, three hundred fifty-two".