1439972352 has 528 divisors, whose sum is σ = 5472073152. Its totient is φ = 353894400.

The previous prime is 1439972299. The next prime is 1439972393. The reversal of 1439972352 is 2532799341.

1439972352 is a `hidden beast` number, since 143 + 99 + 72 + 352 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1439972298 and 1439972307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14257102 + ... + 14257202.

Almost surely, 2^1439972352 is an apocalyptic number.

1439972352 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 1439972352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736036576).

1439972352 is an abundant number, since it is smaller than the sum of its proper divisors (4032100800).

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

1439972352 is a wasteful number, since it uses less digits than its factorization.

1439972352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 143 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 1439972352 is about 37946.9676258855. The cubic root of 1439972352 is about 1129.2360074543.

The spelling of 1439972352 in words is "one billion, four hundred thirty-nine million, nine hundred seventy-two thousand, three hundred fifty-two".