1439425680 has 480 divisors, whose sum is σ = 5740799232. Its totient is φ = 291962880.

The previous prime is 1439425679. The next prime is 1439425711. The reversal of 1439425680 is 865249341.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14839392 + ... + 14839488.

Almost surely, 2^1439425680 is an apocalyptic number.

1439425680 is a gapful number since it is divisible by the number (10) 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 1439425680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2870399616).

1439425680 is an abundant number, since it is smaller than the sum of its proper divisors (4301373552).

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

1439425680 is a wasteful number, since it uses less digits than its factorization.

1439425680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 1439425680 is about 37939.7638369034. The cubic root of 1439425680 is about 1129.0930880798.

The spelling of 1439425680 in words is "one billion, four hundred thirty-nine million, four hundred twenty-five thousand, six hundred eighty".