4071040 has 32 divisors (see below), whose sum is σ = 9733860. Its totient is φ = 1628160.

The previous prime is 4071037. The next prime is 4071043. The reversal of 4071040 is 401704.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4071037) and next prime (4071043).

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 166464 = 1976^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4071043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541 + ... + 3820.

Almost surely, 2^4071040 is an apocalyptic number.

4071040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4071040 is an abundant number, since it is smaller than the sum of its proper divisors (5662820).

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

4071040 is an equidigital number, since it uses as much as digits as its factorization.

4071040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380 (or 6368 counting only the distinct ones).

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

The square root of 4071040 is about 2017.6818381499. The cubic root of 4071040 is about 159.6743375997.

Adding to 4071040 its reverse (401704), we get a palindrome (4472744).

The spelling of 4071040 in words is "four million, seventy-one thousand, forty".