3730281 has 4 divisors (see below), whose sum is σ = 4973712. Its totient is φ = 2486852.

The previous prime is 3730277. The next prime is 3730283. The reversal of 3730281 is 1820373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1820373 = 3 ⋅606791.

It is a cyclic number.

It is not a de Polignac number, because 3730281 - 2² = 3730277 is a prime.

It is a super-2 number, since 2×3730281² = 27829992677922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3730283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621711 + ... + 621716.

It is an arithmetic number, because the mean of its divisors is an integer number (1243428).

Almost surely, 2^3730281 is an apocalyptic number.

It is an amenable number.

3730281 is a deficient number, since it is larger than the sum of its proper divisors (1243431).

3730281 is a wasteful number, since it uses less digits than its factorization.

3730281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243430.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3730281 is about 1931.3935383551. The cubic root of 3730281 is about 155.0888287228.

Subtracting from 3730281 its product of nonzero digits (1008), we obtain a palindrome (3729273).

The spelling of 3730281 in words is "three million, seven hundred thirty thousand, two hundred eighty-one".