3725603440 has 80 divisors (see below), whose sum is σ = 9382711968. Its totient is φ = 1367589888.

The previous prime is 3725603437. The next prime is 3725603471. The reversal of 3725603440 is 443065273.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3725603396 and 3725603405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169567 + ... + 190273.

Almost surely, 2^3725603440 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 3725603440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4691355984).

3725603440 is an abundant number, since it is smaller than the sum of its proper divisors (5657108528).

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

3725603440 is a wasteful number, since it uses less digits than its factorization.

3725603440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20906 (or 20900 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 3725603440 is about 61037.7214515745. The cubic root of 3725603440 is about 1550.2397742144.

The spelling of 3725603440 in words is "three billion, seven hundred twenty-five million, six hundred three thousand, four hundred forty".