3725720240 has 40 divisors (see below), whose sum is σ = 9449783568. Its totient is φ = 1354807040.

The previous prime is 3725720237. The next prime is 3725720267. The reversal of 3725720240 is 420275273.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 3725720197 and 3725720206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116007 + ... + 2117766.

Almost surely, 2^3725720240 is an apocalyptic number.

It is an amenable number.

3725720240 is an abundant number, since it is smaller than the sum of its proper divisors (5724063328).

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

3725720240 is a wasteful number, since it uses less digits than its factorization.

3725720240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233797 (or 4233791 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 3725720240 is about 61038.6782294637. The cubic root of 3725720240 is about 1550.2559743742.

The spelling of 3725720240 in words is "three billion, seven hundred twenty-five million, seven hundred twenty thousand, two hundred forty".