3747940 has 48 divisors (see below), whose sum is σ = 9475200. Its totient is φ = 1216512.

The previous prime is 3747929. The next prime is 3747949. The reversal of 3747940 is 497473.

It is a junction number, because it is equal to n+sod(n) for n = 3747896 and 3747905.

It is not an unprimeable number, because it can be changed into a prime (3747949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1956 + ... + 3364.

It is an arithmetic number, because the mean of its divisors is an integer number (197400).

Almost surely, 2^3747940 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 3747940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4737600).

3747940 is an abundant number, since it is smaller than the sum of its proper divisors (5727260).

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

3747940 is a wasteful number, since it uses less digits than its factorization.

3747940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 3747940 is about 1935.9597103246. The cubic root of 3747940 is about 155.3331716470. Note that the first 3 decimals are identical.

The spelling of 3747940 in words is "three million, seven hundred forty-seven thousand, nine hundred forty".