3752720 has 40 divisors (see below), whose sum is σ = 8879640. Its totient is φ = 1474560.

The previous prime is 3752719. The next prime is 3752729. The reversal of 3752720 is 272573.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 3748096 = 68^2 + 1936^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3752720.

It is not an unprimeable number, because it can be changed into a prime (3752729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4496 + ... + 5264.

It is an arithmetic number, because the mean of its divisors is an integer number (221991).

Almost surely, 2^3752720 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 3752720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4439820).

3752720 is an abundant number, since it is smaller than the sum of its proper divisors (5126920).

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

3752720 is a wasteful number, since it uses less digits than its factorization.

3752720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 3752720 is about 1937.1938467794. The cubic root of 3752720 is about 155.3991792080.

The spelling of 3752720 in words is "three million, seven hundred fifty-two thousand, seven hundred twenty".