4029040 has 20 divisors (see below), whose sum is σ = 9367704. Its totient is φ = 1611584.

The previous prime is 4029031. The next prime is 4029049. The reversal of 4029040 is 409204.

It is an interprime number because it is at equal distance from previous prime (4029031) and next prime (4029049).

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 4028999 and 4029017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4029049) 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, 25102 + ... + 25261.

Almost surely, 2^4029040 is an apocalyptic number.

4029040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4029040 is an abundant number, since it is smaller than the sum of its proper divisors (5338664).

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

4029040 is a wasteful number, since it uses less digits than its factorization.

4029040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50376 (or 50370 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4029040 is about 2007.2468707162. The cubic root of 4029040 is about 159.1233303374.

The spelling of 4029040 in words is "four million, twenty-nine thousand, forty".