4001740 has 12 divisors (see below), whose sum is σ = 8403696. Its totient is φ = 1600688.

The previous prime is 4001719. The next prime is 4001741. The reversal of 4001740 is 471004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4001741) 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, 100024 + ... + 100063.

It is an arithmetic number, because the mean of its divisors is an integer number (700308).

Almost surely, 2^4001740 is an apocalyptic number.

It is an amenable number.

4001740 is an abundant number, since it is smaller than the sum of its proper divisors (4401956).

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

4001740 is a wasteful number, since it uses less digits than its factorization.

4001740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200096 (or 200094 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 4001740 is about 2000.4349527040. The cubic root of 4001740 is about 158.7631191754.

Adding to 4001740 its reverse (471004), we get a palindrome (4472744).

The spelling of 4001740 in words is "four million, one thousand, seven hundred forty".