3730000 has 50 divisors (see below), whose sum is σ = 9054914. Its totient is φ = 1488000.

The previous prime is 3729997. The next prime is 3730003. The reversal of 3730000 is 373.

It is an interprime number because it is at equal distance from previous prime (3729997) and next prime (3730003).

It can be written as a sum of positive squares in 5 ways, for example, as 1382976 + 2347024 = 1176^2 + 1532^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3730003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9814 + ... + 10186.

Almost surely, 2^3730000 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 3730000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4527457).

3730000 is an abundant number, since it is smaller than the sum of its proper divisors (5324914).

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

3730000 is an equidigital number, since it uses as much as digits as its factorization.

3730000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 13.

The square root of 3730000 is about 1931.3207915828. The cubic root of 3730000 is about 155.0849343732.

Adding to 3730000 its reverse (373), we get a palindrome (3730373).

Multiplying 3730000 by its reverse (373), we get a square (1391290000 = 37300²).

3730000 divided by its reverse (373) gives a 4-th power (10000 = 10⁴).

The spelling of 3730000 in words is "three million, seven hundred thirty thousand".