3724240 has 40 divisors (see below), whose sum is σ = 9327528. Its totient is φ = 1374720.

The previous prime is 3724223. The next prime is 3724243. The reversal of 3724240 is 424273.

3724240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 3283344 = 664^2 + 1812^2 .

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

It is a d-powerful number, because it can be written as 3⁶ + 7⁷ + 2¹⁹ + 4⁷ + 2²¹ + 4⁹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3724243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751 + ... + 2830.

Almost surely, 2^3724240 is an apocalyptic number.

It is an amenable number.

3724240 is an abundant number, since it is smaller than the sum of its proper divisors (5603288).

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

3724240 is a wasteful number, since it uses less digits than its factorization.

3724240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 3724240 is about 1929.8290079694. The cubic root of 3724240 is about 155.0050640038.

The spelling of 3724240 in words is "three million, seven hundred twenty-four thousand, two hundred forty".