1015040 has 72 divisors (see below), whose sum is σ = 2661288. Its totient is φ = 368640.

The previous prime is 1015039. The next prime is 1015043. The reversal of 1015040 is 405101.

1015040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 984064 = 176^2 + 992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16610 + ... + 16670.

2^1015040 is an apocalyptic number.

1015040 is a gapful number since it is divisible by the number (10) 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 1015040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330644).

1015040 is an abundant number, since it is smaller than the sum of its proper divisors (1646248).

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

1015040 is an equidigital number, since it uses as much as digits as its factorization.

1015040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1015040 is about 1007.4919354516. The cubic root of 1015040 is about 100.4988407744.

The spelling of 1015040 in words is "one million, fifteen thousand, forty".