3742720 has 88 divisors (see below), whose sum is σ = 9727344. Its totient is φ = 1376256.

The previous prime is 3742709. The next prime is 3742727. The reversal of 3742720 is 272473.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3742727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87019 + ... + 87061.

It is an arithmetic number, because the mean of its divisors is an integer number (110538).

Almost surely, 2^3742720 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 3742720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4863672).

3742720 is an abundant number, since it is smaller than the sum of its proper divisors (5984624).

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

3742720 is a wasteful number, since it uses less digits than its factorization.

3742720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 3742720 is about 1934.6110720246. The cubic root of 3742720 is about 155.2610239354.

The spelling of 3742720 in words is "three million, seven hundred forty-two thousand, seven hundred twenty".