4015506 has 24 divisors (see below), whose sum is σ = 8829072. Its totient is φ = 1216600.

The previous prime is 4015493. The next prime is 4015513. The reversal of 4015506 is 6055104.

It is a happy number.

4015506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4015506² = 32248576872072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 2040 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (367878).

Almost surely, 2^4015506 is an apocalyptic number.

4015506 is an abundant number, since it is smaller than the sum of its proper divisors (4813566).

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

4015506 is a wasteful number, since it uses less digits than its factorization.

4015506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558 (or 5547 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 4015506 is about 2003.8727504510. The cubic root of 4015506 is about 158.9449593912.

The spelling of 4015506 in words is "four million, fifteen thousand, five hundred six".