4039490 has 64 divisors (see below), whose sum is σ = 9386496. Its totient is φ = 1216512.

The previous prime is 4039487. The next prime is 4039537. The reversal of 4039490 is 949304.

It is a happy number.

4039490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20834 + ... + 21026.

It is an arithmetic number, because the mean of its divisors is an integer number (146664).

Almost surely, 2^4039490 is an apocalyptic number.

4039490 is an abundant number, since it is smaller than the sum of its proper divisors (5347006).

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

4039490 is a wasteful number, since it uses less digits than its factorization.

4039490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4039490 is about 2009.8482529783. The cubic root of 4039490 is about 159.2607827041.

The spelling of 4039490 in words is "four million, thirty-nine thousand, four hundred ninety".