3742506 has 48 divisors (see below), whose sum is σ = 8835840. Its totient is φ = 1140480.

The previous prime is 3742493. The next prime is 3742523. The reversal of 3742506 is 6052473.

It is a happy number.

3742506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3742506.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10426 + ... + 10778.

It is an arithmetic number, because the mean of its divisors is an integer number (184080).

Almost surely, 2^3742506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3742506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4417920).

3742506 is an abundant number, since it is smaller than the sum of its proper divisors (5093334).

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

3742506 is a wasteful number, since it uses less digits than its factorization.

3742506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3742506 is about 1934.5557629595. Note that the first 3 decimals coincide. The cubic root of 3742506 is about 155.2580647245.

Adding to 3742506 its reverse (6052473), we get a palindrome (9794979).

The spelling of 3742506 in words is "three million, seven hundred forty-two thousand, five hundred six".