4015000 has 80 divisors (see below), whose sum is σ = 10402920. Its totient is φ = 1440000.

The previous prime is 4014977. The next prime is 4015013. The reversal of 4015000 is 5104.

4015000 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 2×4015000² = 32240450000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 13.

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 19 ways as a sum of consecutive naturals, for example, 54964 + ... + 55036.

Almost surely, 2^4015000 is an apocalyptic number.

4015000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5201460).

4015000 is an abundant number, since it is smaller than the sum of its proper divisors (6387920).

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

4015000 is a wasteful number, since it uses less digits than its factorization.

4015000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 4015000 is about 2003.7464909514. The cubic root of 4015000 is about 158.9382828123.

The spelling of 4015000 in words is "four million, fifteen thousand".